Optimization of clinically applied orthodontic archwire electrothermal treatment conditions by heat tint and mechanical properties: An experimental study
Publication date: Available online 13 September 2019Source: International OrthodonticsAuthor(s): Yingzhi Gu, Rui Zhuang, Xianju Xie, Dongliang Zhang, Yuxing BaiSummaryObjectiveElectric resistance heat treatment procedures are performed by most orthodontists; however, the effects of electrothermal treatment on the mechanical properties, surface morphology, phase transition, colour and arch width of stainless steel archwires remain controversial and are worthy of investigation.Materials and methodsStainless steel archwires (0.017 × 0.025 and 0.019 × 0.025 inches) were heat-treated using a spot...
Source: International Orthodontics - September 14, 2019 Category: Dentistry Source Type: research

Mini implants osseointegration, molar intrusion and root resorption in Sinclair minipigs
ConclusionIn minipigs immediate loading of smooth mini implants promoted a high degree of intrusive movement particularly of the second premolars, stimulated bone growth and osseointegration, but extensive root resorption was not observed.RésuméObjectifL’utilisation de mini-implants pour créer un point d’ancrage intrabuccal passif a été principalement testée dans des essais cliniques. Dans cette étude, une approche intégrée expérimentale a évalué les protocoles de mise en charge des mini-implants (mise en charge immédiate...
Source: International Orthodontics - September 6, 2019 Category: Dentistry Source Type: research

A comparison between RMGIC and composite with acid-etch preparation or hypochlorite on the adhesion of a premolar metal bracket by testing SBS and ARI: In vitro study
Publication date: Available online 5 September 2019Source: International OrthodonticsAuthor(s): Victor Ghoubril, Joseph Ghoubril, Elie KhourySummaryObjectiveA bonding material can be acceptable in orthodontics when Shear Bond Strength (SBS) is higher than 5.9 Mpa. The aim of our study was to compare the bonding of a metal orthodontic bracket “in vitro” under different types of healthy enamel surface preparations and with two bonding products: the composite and the Resin Modified Glass Ionomer Cement (RMGIC).MethodsPremolars preserved in 1% thymol water were bonded on their vestibular and palatal/lingual su...
Source: International Orthodontics - September 6, 2019 Category: Dentistry Source Type: research

Complications in orthognathic surgery: A retrospective study of 5025 cases
DiscussionComplications in orthognathic surgery are rare. While many are manageable, some could have adverse outcomes. Each complication has its own treatment. Prevention can be achieved with perfect surgical techniques. However, some complications cannot be avoided even with skilled surgeons.RésuméIntroductionLa chirurgie orthognathique est une chirurgie réglée qui a vu ses indications s’élargir grâce à la fiabilité de ses techniques et à la collaboration renforcée entre orthodontistes et chirurgiens maxillo-faciaux. Toutefois bien que rares, des c...
Source: International Orthodontics - September 6, 2019 Category: Dentistry Source Type: research

Association between cystathionine beta-synthase c.844ins68 polymorphism and risk of non-syndromic cleft lip/palate: A meta-analysis of family-based and case-control studies
ConclusionsThe results of this meta-analysis showed that there was no association between CBS c.844ins68 polymorphism and risk of NSCL/P; therefore, this polymorphism does not play a role in susceptibility to NSCL/P.RésuméObjectifLes facteurs génétiques et environnementaux jouent tous deux un rôle dans l’apparition des fentes labiale/palatine non syndromiques (NSCL/P). Cette méta-analyse a évalué l’association entre le polymorphisme de la Cystathionine Bêta-synthase (CBS) c.844ins68 et le risque de NSCL/P dans des études familiales et des ...
Source: International Orthodontics - September 6, 2019 Category: Dentistry Source Type: research

Lingual orthodontics in an adult patient with upper premolar extraction: Case report
ConclusionLingual mechanics can provide good results from both an aesthetic and function point of view in adult complex extractions case. It ensures aesthetics during treatment, incisor control during retraction. Miniscrews were also useful to overcome the periodontal limits and enhance the anchorage.RésuméObjectifMontrer avec le cas clinique de cette patiente adulte que l’orthodontie linguale peut être une solution thérapeutique pour les cas complexes à part entière et avec une approche pluridisciplinaire.Matériels et méthodesLa patiente présentait une cl...
Source: International Orthodontics - September 6, 2019 Category: Dentistry Source Type: research

Individualized Surgical Orthodontic Rehabilitation of Class III Dentofacial Deformities
This article demonstrates the successful surgical-orthodontic rehabilitation of two patients with skeletal Class III deformities. Meticulously planned and well-executed conventional combination of presurgical orthodontics, orthognathic surgery and postsurgical orthodontic therapy helped optimally achieve an aesthetic facial profile, pleasing smile and well-interdigitated occlusion.ResultsThe results showed excellent stability at 3-year follow-up in both cases.DiscussionVarious clinical criteria and protocol crucial for realization of stable aesthetic, structural and functional outcomes are also discussed.Résum&eacut...
Source: International Orthodontics - September 6, 2019 Category: Dentistry Source Type: research

Are orthodontic landmarks and variables in digital cephalometric radiography taken in fixed and natural head positions reliable?
ConclusionsCephalometric landmarks and variables showed reliability in digital lateral cephalometric radiography in fixed and natural head position. In lateral cephalograms taken in fixed head position an anterior inclination of the head was noticed compared to those in natural head position.RésuméObjectifL’objet de l’étude était d’étudier la fiabilité des points et variables les plus communs sur radiographies céphalométriques numériques avec position de la tête fixée et naturelle.Matériels et méthodesVingt et un pat...
Source: International Orthodontics - September 6, 2019 Category: Dentistry Source Type: research

Distribution and amount of stresses caused by insertion or removal of orthodontic miniscrews into the maxillary bone: A finite element analysis
ConclusionMost of the stress and strain is tolerated by the cortical bone and not the cancellous one. Using cylindrical miniscrews might be more bone-friendly. However, all cases had stresses below tolerable thresholds, and hence are safe.RésuméObjectifLa stabilité initiale des mini-vis est un facteur déterminant de leur succès en tant qu’ancrage orthodontique. L’un des facteurs influençant cette stabilité est la contrainte exercée sur l’os par la vis. Étant donné que la répartition ainsi que le degré des contraintes et d&...
Source: International Orthodontics - September 5, 2019 Category: Dentistry Source Type: research

The relation between dental age and cervical vertebral maturation in orthodontic patients aged 8 to 16 years: A cross-sectional study
ConclusionConsidering the correlation between skeletal age and dental calcification, dental age, especially the developmental stage of mandibular second molars, based on panoramic radiographs, can be served as a primary diagnostic tool for determining the skeletal maturity stage of patients.RésuméObjectifL’objectif de cette étude était d’évaluer la relation entre l’âge dentaire de sept dents du secteur mandibulaire gauche déterminé par la méthode de Demirjian et l’âge squelettique déterminé par la méthode de Bac...
Source: International Orthodontics - September 5, 2019 Category: Dentistry Source Type: research

Variation of upper lip pressure on upper teeth during non-extraction orthodontic treatment: A prospective clinical study
ConclusionThis study showed that increasing inter-canine width disrupts the muscle equilibrium and therefore is prone to relapse, whereas the upper lip can better adapt to the protrusion of upper incisors.RésuméObjectifLes objectifs de cette étude clinique prospective étaient de quantifier la variation de pression exercée par la lèvre supérieure sur les dents supérieures pendant la phase d’alignement et d’évaluer sa capacité à s’adapter aux changements de position des dents.Matériels et méthodesTrente jeunes sujets ...
Source: International Orthodontics - September 5, 2019 Category: Dentistry Source Type: research

Pharyngeal dimensional changes in class II malocclusion treatment when using Forsus® or intermaxillary elastics – An exploratory study
ConclusionsBoth orthodontic treatment approaches appear to be associated with a similar increase in oropharyngeal airway dimensions. Male patients under 14-year-old had a greater significant increase compared to female patients and older children. Normal pharyngeal dimensions changes were not accounted for.RésuméObjectifL’obstruction des voies respiratoires pharyngées peut favoriser certaines formes de troubles respiratoires du sommeil (SDB) chez les enfants prédisposés, en particulier ceux qui présentent une malocclusion de classe II. Des changements dans les zones anatomiqu...
Source: International Orthodontics - September 4, 2019 Category: Dentistry Source Type: research

Evaluation of upper airway volume and craniofacial volumetric structures in obstructive sleep apnoea adults: A descriptive CBCT study
ConclusionsCraniofacial structures did not show significant differences between the groups, but in the OSA group the posterior space released for upper airway was significantly bigger and UAWV was significantly smaller.RésuméObjectifMesurer, à l’aide d’une évaluation descriptive tridimensionnelle, le volume des voies respiratoires supérieures (UAWV) et le volume des structures crâniofaciales de patients adultes souffrant d’apnée obstructive du sommeil (OSA) pour les comparer aux résultats correspondants chez les adultes sans troubles du sommeil.Mat&ea...
Source: International Orthodontics - September 3, 2019 Category: Dentistry Source Type: research

First premolar extractions in an adolescent presenting a Class I biprotrusion malocclusion with skeletal Class II: A case report
Publication date: Available online 31 August 2019Source: International OrthodonticsAuthor(s): Frédéric Rafflenbeul, Hadrien Bonomi-Dunoyer, Thibaut Siebert, Yves BolenderSummaryThis case report shows the orthodontic treatment of four first premolar extractions of a 14-year-old teenager presenting a dental Class I malocclusion with a severe retrognathic mandible. It reflects conflicting views on objectives between the orthodontist who takes into account the facial balance and the patient who only desires a tooth alignment.RésuméCe cas clinique montre le traitement d’un patient de 14 an...
Source: International Orthodontics - September 1, 2019 Category: Dentistry Source Type: research

The effect of cigarette smoke on the shear bond strength of metallic and ceramic orthodontic brackets: An in vitro study
Publication date: Available online 30 August 2019Source: International OrthodonticsAuthor(s): Haidi Omar, Salem Haggag, Ahmed GhoneimaSummaryObjectiveThe bond strength between enamel and the bracket base is influenced by exposure to the oral environment. The aim of the current study was to determine the effect of cigarette smoke on the shear bond strength (SBS) of bonded metallic and ceramic orthodontic brackets.Materials and methodsa sample of 60 sound extracted premolars were divided into four groups (n = 15 each) as follows: group (A): ceramic brackets without smoke exposure, (B): metallic brackets without smo...
Source: International Orthodontics - August 31, 2019 Category: Dentistry Source Type: research

Stable deep bite correction with true mandibular incisor intrusion in a late adolescent patient with skeletal deep bite: A case report
ConclusionsCe cas clinique pourrait servir de proposition thérapeutique en cas d’insuffisance verticale antérieure réputée instable. (Source: International Orthodontics)
Source: International Orthodontics - August 31, 2019 Category: Dentistry Source Type: research

Impact of adhesive system generation and light curing units on orthodontic bonding: In vitro study
ConclusionFourth and fifth GASs showed similar SBS higher than seventh GAS. Fourth GAS bonds were able to resist longer against traction forces than those set up by fifth generation. Seventh GAS bonds offered the least efficient resistance. ARI = 0 was the highest in group 1. However, Group 4 showed the highest ARI = 1 and ARI = 2 revealing cohesive failure. We also found that the adhesive power is proportional to the power of the lamp used. In fact, we concluded that 1500 mw/cm2 units light curing during 30 seconds generated an ideal energy to enhance orthodontic bracket adhesion.R&eacut...
Source: International Orthodontics - August 30, 2019 Category: Dentistry Source Type: research

Dental and skeletal changes associated with the Damon system philosophical approach
ConclusionThere is not enough evidence to support the claim that the Damon system allows additional arch expansion with better tipping control than with traditional techniques.RésuméObjectifComparer les changements squelettiques et dento-alvéolaires produits par la philosophie de traitement du système Damon à ceux produits par les techniques traditionnelles de traitement orthodontique.Matériels et méthodesUne recherche électronique dans quatre grandes bases de données, Cochrane, PubMed, EMBASE, et Google Beta Scholar, a été effectuée le 5&n...
Source: International Orthodontics - August 30, 2019 Category: Dentistry Source Type: research

Evaluation of the reliability of a practical digital dental X-ray method for the first metacarpophalangeal joint to assist the skeletal age in peripubertal orthodontic period
This study aimed to evaluate the validity of using of digital dental X-ray for the thumb region in assessment of skeletal maturation stage around functional orthodontic treatment time.Materials and methodsThe sample consisted of 200 patients (100 males and 100 females) aged between (9.5–18) years. Each patient underwent a hand-wrist radiograph and a digital radiograph for the thumb region taken by a dental X-ray machine. Skeletal changes were studied in the sesamoid bone and first Metacarpophalangeal joint region, and compared to Björk method.ResultsGood correlation was noted between our thumb method stages (Th ...
Source: International Orthodontics - August 29, 2019 Category: Dentistry Source Type: research

YouTube video analysis as a source of information for patients on impacted canine
Publication date: Available online 27 August 2019Source: International OrthodonticsAuthor(s): Aylin Pasaoglu Bozkurt, Selin Gaş, Özge Özdal ZincirSummaryObjectiveTo investigate video content on YouTube™ related to impacted canine and impacted canine surgery.Materials and MethodsIn this cross-sectional study, the term “impacted canine tooth” was searched on YouTube™. After excluding duplicates, irrelevant videos, non-English-language videos, no audio-no video contents, sixty-one videos were independently examined by 3 reviewers. Videos were categorized as “not useful”, “s...
Source: International Orthodontics - August 28, 2019 Category: Dentistry Source Type: research

In vitro comparison of shear bond strengths of ceramic orthodontic brackets with ceramic crowns using an aluminium oxide air abrasion etchant
ConclusionThe Symetri bracket was the only bracket that was effective for both substrates (mean SBS > 6 mPa). The Etch Master protocol does not appear effective for e.max® CAD.RésuméObjectifLe but de cette étude était de déterminer les différences d’adhérence de trois types d’attaches orthodontiques en céramique quand elles sont collées sur différents substrats en céramique avec un protocole d’aéro-abrasion à la poudre d’oxyde d’alumine décapante.Matériels et mé...
Source: International Orthodontics - August 28, 2019 Category: Dentistry Source Type: research

Medically compromised patients in orthodontic practice: Review of evidence and recommendations
This article will discuss some medical conditions that might be seen by orthodontists. Also, recommendations and modifications of the orthodontic treatment plan will be discussed thoroughly.Materials and methodsA computerized electronic search of the literature was conducted in Google Scholar and PubMed and was limited to publications in English.ResultsOrthodontic management was studied in cases of Infective endocarditis (IE), Thrombocytopenia, Hemophilia, Sickle cell anemia, Thalassemia, Diabetes mellitus (DM), Thyroid Disorders, Asthma, DiGeorge Syndrome, HIV/AIDS, Organ transplantation, Orthodontic management, Juvenile ...
Source: International Orthodontics - August 28, 2019 Category: Dentistry Source Type: research

Comparison of transverse maxillary dental arch width changes with self-ligating and conventional brackets in patients requiring premolar extraction – A randomised clinical trial
ConclusionSignificant difference was found between Self-ligating brackets and the Conventional bracket system regarding maxillary arch width dimensional changes. Passive Self-ligating brackets – Smart Clip (Group 2) showed the highest and inter-molar width increase.RésuméObjectifL’objectif de cette étude était de comparer l’évolution des dimensions transversales de l’arcade maxillaire, chez les patients traités par extraction des premières prémolaires, avec attaches autoligaturantes actives, passives et conventionnelles.Matérie...
Source: International Orthodontics - August 27, 2019 Category: Dentistry Source Type: research

Comparing the plaque-removal ability of a triple-headed toothbrush versus a conventional manual toothbrush in adolescents with fixed orthodontic appliances: A single-center, randomized controlled clinical trial
The objective of this trial was to compare the plaque removal ability of a triple-headed toothbrush to a conventional manual toothbrush in adolescents with fixed orthodontic appliances.Materials and methodsSixty adolescent patients undergoing orthodontic treatment were randomly assigned to brush one time with either a conventional manual toothbrush or a triple-headed toothbrush. The main outcome was the post-brushing plaque index as measured by the Silness-Löe plaque index.ResultsSixty patients (mean age, 14.2; standard deviation, 1.65) were randomized in a 1:1 ratio to either a manual toothbrush group or a triple-hea...
Source: International Orthodontics - August 27, 2019 Category: Dentistry Source Type: research

Shear bond strength of orthodontic brackets bonded to a new all-ceramic crown composed of lithium silicate infused with zirconia: An in vitro comparative study
ConclusionsOrthodontic bonding to lithium silicate infused with zirconia yielded a weaker shear bond strength than bonding to traditional lithium disilicate, however, when the surface was pre-treated with hydrofluoric acid etch it provides a bond strength that is within an acceptable clinical range.RésuméObjectifL’objectif de cette étude était de déterminer si l’adhérence des attaches orthodontiques métalliques (SBS) peut être cliniquement acceptable sur des couronnes CFAO (conception et fabrication assistées par ordinateur) en vitrocéramique ...
Source: International Orthodontics - August 27, 2019 Category: Dentistry Source Type: research

Heritability of the pharyngeal airway volume and dimensions as assessed from siblings with overt malocclusions
ConclusionThe capacity to maintain, rather than having proper AP dimension of the airway, seems to be the most critical mark of a proper airway volume.RésuméObjectifMesurer les contributions relatives des facteurs génétiques et environnementaux au volume et aux dimensions des voies respiratoires chez les patients orthodontiques.Matériels et méthodesCent vingt-cinq sujets issus de 57 fratries ont été sélectionnés. Des coupes scanner à faisceaux coniques ont été réalisées dans le cadre d’enregistrements orthodo...
Source: International Orthodontics - August 27, 2019 Category: Dentistry Source Type: research

Editorial Board
Publication date: September 2019Source: International Orthodontics, Volume 17, Issue 3Author(s): (Source: International Orthodontics)
Source: International Orthodontics - August 26, 2019 Category: Dentistry Source Type: research

How accurate is the soft tissue prediction of Dolphin Imaging for orthognathic surgery?
Publication date: September 2019Source: International Orthodontics, Volume 17, Issue 3Author(s): Piet-Hein van Twisk, Maik Tenhagen, Atilla Gül, Eppo Wolvius, Maarten KoudstaalSummaryPurposeThe purpose of this retrospective study is to evaluate the accuracy of soft tissue prediction models with Dolphin Imaging.Materials and MethodsPreoperative and 1-year postoperative Lateral cephalograms (LCG) of patients undergoing Le Fort I, bilateral sagittal split osteotomy (BSSO) or bimaxillary osteotomy (Bimax) between 2006 and 2009 were retrospectively collected. A hard tissue virtual surgery was performed on the preoperative ...
Source: International Orthodontics - August 26, 2019 Category: Dentistry Source Type: research

Association of Betaine-Homocysteine S-Methyl Transferase (rs3797546 and rs3733890) polymorphisms with non-syndromic cleft lip/palate: A meta-analysis
ConclusionsAccording to the present meta-analysis, rs3733890 polymorphism does not play a role in susceptibility to NSCL/P; whereas, rs3797546 polymorphism may play a role in susceptibility to NSCL/P. Future studies are required to examine the association between BHMT polymorphisms and the NSCL/P risk in different ethnicities with a larger sample size.RésuméObjectifLes fentes labiale/palatine non syndromiques (NSCL/P) ont une étiologie multifactorielle et polygénique. Le rôle de la génétique dans leur apparition n’a pas été entièrement clarifi&eacut...
Source: International Orthodontics - August 24, 2019 Category: Dentistry Source Type: research

Effectiveness of various interceptive treatments on palatally displaced canine–a systematic review
ConclusionInterceptive treatment improves the position of PDC and reduces the chances of impaction. Significant changes in success rate depend on diagnosis at early mixed dentition stage. A combination of interceptive measures which includes extraction of primary canine, cervical pull headgear, TPA and RME aided in successful eruption. However, Randomized clinical trials with increased sample size, proper randomization comparing all the interceptive measures along with assessment of other factors such as patient satisfaction, pain experience and cost factor will yield more evidence based conclusions.RésuméObj...
Source: International Orthodontics - August 24, 2019 Category: Dentistry Source Type: research

Evaluating the effect of clinical usage and autoclave sterilization on the load deflection properties of three different orthodontic wires: Ex-vivo study
ConclusionsAfter all conditions, NiTi wire in spite of reduction in stiffness presented a mean load which stayed in category of heavy force. The Cu-NiTi wires saw an improvement in light physiologic force. In contrast, the Beta-Titanium stiffness increased after clinical usage, and the force level remained in the range of heavy force.RésuméObjectifLe but de cette étude était d’évaluer l’effet du vieillissement en bouche et de la stérilisation sur les propriétés physiques des fils orthodontiques à section rectangulaire en nickel-titane (NiTi), B&ecir...
Source: International Orthodontics - August 4, 2019 Category: Dentistry Source Type: research

A systematic review and meta-analysis on protective role of forkhead box E1 (FOXE1) polymorphisms in susceptibility to non-syndromic cleft lip/palate
Publication date: Available online 22 July 2019Source: International OrthodonticsAuthor(s): Mohammad Moslem Imani, Mohsen Safaei, Pia Lopez-Jornet, Masoud SadeghiSummaryIntroductionSeveral environmental and genetic factors have a role in the aetiology of non-syndromic cleft lip/palate (NSCL/P). This meta-analysis evaluated the association of rs3758249 and rs4460498 forkhead box E1 (FOXE1) polymorphisms with the NSCL/P risk.Materials and methodsThe Scopus, Cochrane Library, Web of Science, and PubMed databases were searched for articles published until March 2019. The analyses were performed by Review Manager 5.3 using the ...
Source: International Orthodontics - July 23, 2019 Category: Dentistry Source Type: research

Association between maxillary transverse discrepancy and occurrence of potentially impacted maxillary canines in mixed dentition patients
ConclusionPatients with maxillary transverse discrepancy may not be at a higher risk of palatal canine impaction. Radiological presence of canine in sector II, III and IV, pose a higher risk of canine impaction.RésuméObjectifLe but de cette étude était de déterminer le lien entre un déficit transversal du maxillaire et l’incidence des canines maxillaires incluses chez les patients en denture mixte.Matériel et méthodesCette étude analytique transversale a été menée sur 85 sujets pakistanais (32 hommes et 53 femmes) &acir...
Source: International Orthodontics - July 20, 2019 Category: Dentistry Source Type: research

Effects of Invisalign® treatment on speech articulation
ConclusionsInvisalign® aligners do have an impact on the articulation of consonants. Fricative alveolar consonants were the primary phonemes impacted. Due to the fact that the efficacy of Invisalign® treatment is based primarily on compliance and that speech impairment may interfere with compliance, the information presented in this study should be conveyed to the patient before the initiation of Invisalign® treatment.RésuméObjectifsDéterminer les effets des aligneurs Invisalign® sur la capacité des patients à articuler les consonnes.Matériels et méthodesTren...
Source: International Orthodontics - July 19, 2019 Category: Dentistry Source Type: research

Evaluation of initial displacement and stresses in the maxillary dentition following en masse retraction using fixed lingual appliance and micro-implants: A finite element analysis
ConclusionWithin the limitations of this research, the 8 mm micro-implant model displayed high initial stresses and greater initial displacement of the anterior teeth in the X-Y-Z coordinates in comparison to conventional retraction method.RésuméObjectifÉvaluer et comparer le processus de contrainte et de déplacement orthodontique en technique linguale entre la rétraction conventionnelle et celle avec minivis d’ancrage.Matériaux et méthodesUn modèle par éléments finis du maxillaire, des dents, du ligament parodontal, de l’appareil orthod...
Source: International Orthodontics - July 11, 2019 Category: Dentistry Source Type: research

Prevalence and patterns of tooth agenesis in Angle class II division 2 malocclusion in Italy: A case-control study
Publication date: Available online 9 July 2019Source: International OrthodonticsAuthor(s): Alberto De Stefani, Giovanni Bruno, Edoardo Conte, Alessandro Frezza, Paolo Balasso, Antonio GraccoSummaryObjectiveThe aim of this case-control retrospective study was to assess the prevalence and pattern of tooth agenesis in a group of Italian Caucasian test subjects with Class II division 2 malocclusion. The findings were then compared with an Italian control group of orthodontic patients and with previous studies performed in other countries.Material and methodSix hundred patients (37 subjects with Angle Class II division 2 malocc...
Source: International Orthodontics - July 10, 2019 Category: Dentistry Source Type: research

Three-dimensional imaging control of osteogenesis induced by minimally invasive corticotomies: Perspectives from a case report
Publication date: Available online 8 July 2019Source: International OrthodonticsAuthor(s): Hugo Ancel, Louis-Charles Roisin, Sarah Dufau-Perry, Jean-Baptiste CharrierSummaryCorticotomies are now an integral part of the orthodontist's therapeutic arsenal in adult orthodontics. In recent years, the number of publications about different surgical techniques has increased significantly. This shows that practitioners and patients have a common interest. It is now accepted that corticotomies cause a regional acceleratory phenomenon, which enables a faster dental movement, a reduction in treatment time, as well as a reduction in ...
Source: International Orthodontics - July 10, 2019 Category: Dentistry Source Type: research

How accurate is the soft tissue prediction of Dolphin Imaging for orthognathic surgery
Publication date: Available online 8 July 2019Source: International OrthodonticsAuthor(s): Piet-Hein van Twisk, Maik Tenhagen, Atilla Gül, Eppo Wolvius, Maarten KoudstaalSummaryPurposeThe purpose of this retrospective study is to evaluate the accuracy of soft tissue prediction models with Dolphin Imaging.Materials and MethodsPreoperative and 1-year postoperative Lateral cephalograms (LCG) of patients undergoing Le Fort I, bilateral sagittal split osteotomy (BSSO) or bimaxillary osteotomy (Bimax) between 2006 and 2009 were retrospectively collected. A hard tissue virtual surgery was performed on the preoperative LCG to...
Source: International Orthodontics - July 10, 2019 Category: Dentistry Source Type: research

Erratum to “Three-dimensional skeletal and dental patterns obtained from cone-beam computer tomography of patients diagnosed as malocclusion class I” [Int. Orthod. 17 (2019): 296–303]
Publication date: Available online 8 July 2019Source: International OrthodonticsAuthor(s): Hamey Lee, Hee Soo Oh, Manuel O. Lagravère (Source: International Orthodontics)
Source: International Orthodontics - July 10, 2019 Category: Dentistry Source Type: research

Alveolar corticotomies for accelerated orthodontics: A new mini-invasive technique
Publication date: Available online 8 July 2019Source: International OrthodonticsAuthor(s): Jean-Baptiste Charrier, Hugo AncelSummaryOrthodontic and surgical techniques are constantly evolving and practitioners are facing an increasing demand for shorter treatments, with an expectation of results equivalent to conventional treatments. Corticotomies have made it possible to partly meet this need by facilitating dental movement in adult orthodontic care. Many surgical corticotomy techniques were proposed in the past presenting advantages but also a certain number of disadvantages. After retracing the various surgical techniqu...
Source: International Orthodontics - July 10, 2019 Category: Dentistry Source Type: research

Effects of orthodontic appliances on the diagnostic capability of magnetic resonance imaging in the head and neck region: A systematic review
ConclusionsThere is fair evidence to suggest orthodontic appliances, mainly those with SS, cause MR artefacts. Removal of metal orthodontic appliances prior to MR scans is recommended, especially if the area of interest is near the orthodontic appliance. Additional evidence is needed to provide guidelines to clinicians.RésuméObjectifsLes patients qui suivent un traitement orthodontique fixe actif ou qui se trouvent en phase de contention fixe peuvent nécessiter une IRM (MR) de la région de la tête et du cou. Les orthodontistes ont la tâche difficile de décider si les appareils...
Source: International Orthodontics - July 7, 2019 Category: Dentistry Source Type: research

Tooth-borne versus bone-borne rapid maxillary expansion for transverse maxillary deficiency: A systematic review
ConclusionWithin the limit of the present evidence regarding maxillary expansion, it seems that both tooth-borne and bone-borne devices result in the same outcome in terms of the amount of maxillary expansion, dental tipping, stability and perceived pain both in RME and SARME procedure. PROSPERO registration: CRD42017061078.RésuméObjectifLe but de cette étude était de comparer les effets dento-squelettiques des disjoncteurs à ancrage osseux avec ceux des disjoncteurs conventionnels chez les adolescents et les adultes présentant un déficit transversal du maxillaire.Mét...
Source: International Orthodontics - July 5, 2019 Category: Dentistry Source Type: research

Is premature birth an orthodontic risk factor? A controlled epidemiological clinical study
ConclusionVery preterm and extremely preterm births (occurring more than 8 weeks before the term) represent a risk factor in orthodontics and, therefore, a public health problem.RésuméIntroductionBien qu’une croissance de « rattrapage » ait lieu dans la petite enfance, l’immaturité du système respiratoire et l’utilisation de sondes orales et nasogastriques chez les enfants nés prématurément seraient responsables d’altérations de la morphologie craniofaciale et palatine.ObjectifsÉvaluer si la prématurité...
Source: International Orthodontics - July 4, 2019 Category: Dentistry Source Type: research

Mandibular incisor extraction: A treatment alternative for large maxillary midline diastema
Publication date: Available online 3 July 2019Source: International OrthodonticsAuthor(s): Zaki Hakami, Roby CherianSummaryMaxillary midline diastema is a common aesthetic concern of dental patients. Various treatment modalities have been employed to close diastemas. This case report describes an unusual orthodontic treatment approach for a 25-year-old African American female patient with a large maxillary midline diastema of 5 mm, bialveolar dental protrusion and unilateral Class III malocclusion. The treatment included one mandibular incisor extraction, followed by retraction of the incisors. At the end of the 16-mo...
Source: International Orthodontics - July 4, 2019 Category: Dentistry Source Type: research

Heritability of teeth angulation and inclination in patients with overt malocclusion
ConclusionGenetic effect was more evident on tooth inclination than tooth angulation, on anterior teeth more than posterior teeth, and on maxillary teeth more than mandibular teeth.RésuméObjectifUtiliser les images tridimensionnelles tomodensitométriques (CBCT) des patients avec malocclusion dentaire avant tout traitement pour calculer les estimations d’héritabilité de l’angulation et de l’inclinaison dentaire dans sa totalité. Une estimation de l’héritabilité est représentée par un nombre entre zéro et un qui indique le po...
Source: International Orthodontics - July 4, 2019 Category: Dentistry Source Type: research

The effect of miniscrew length and bone density on anchorage resistance: An in vitro study
ConclusionThe length of miniscrew and the density of bone affect the stability of miniscrew. In bone with optimum density, 10 mm and 8 mm miniscrew equipped good anchorage resistance while in bone with low-density only 10 mm miniscrew provided favourable anchorage resistance.RésuméIntroductionIl est en pratique difficile d’obtenir un ancrage absolu satisfaisant avec un ancrage conventionnel et cet obstacle pourrait être surmonté en utilisant des mini-vis. Le taux de réussite de l’utilisation d’une mini-vis dépend de sa stabilité qui a é...
Source: International Orthodontics - July 4, 2019 Category: Dentistry Source Type: research

Evaluation of shear bond strength of orthodontic molar tubes bonded using hydrophilic primers: An in vitro study
Publication date: Available online 2 July 2019Source: International OrthodonticsAuthor(s): Rima Hadrous, Joseph Bouserhal, Essam OsmanSummaryObjectiveTo evaluate and compare the shear bond strength (SBS) of orthodontic molar tubes bonded using two hydrophilic primers along with a moisture tolerant adhesive system to dry and saliva-contaminated enamel surfaces; and to assess the mode of their bond failure.Materials and methodsA total of 60 extracted human mandibular molars were randomly divided into three major groups according to the primer used, each consisting of 20 molars: XT group acts as a control and bonded with the ...
Source: International Orthodontics - July 4, 2019 Category: Dentistry Source Type: research

Benefits of Digital Smile Design (DSD) in the conception of a complex orthodontic treatment plan: A case report-proof of concept
ConclusionThis proof of concept showed the clinical relevance of the Digital Smile Design protocol as a new tool for complex orthodontic treatment planning, especially in a multidisciplinary approach. Further publications will be necessary in order to define a specific DSD protocol for orthodontic treatment.RésuméIntroductionLe Digital Smile Design (DSD) est un protocole systématique fondé sur des photographies spécifiques et une analyse logicielle utilisée dans le monde entier. Le DSD a pour objectif d’aider le praticien à créer et à planifier le d&eacut...
Source: International Orthodontics - July 2, 2019 Category: Dentistry Source Type: research

Variation in bracket slot sizes, ligation methods and prescriptions: UK national survey
This study designed to investigate the use of fixed bracket slot sizes, ligation method and prescriptions in the UK using an online survey/questionnaire comprised of seven questions.Material and methodsThe questionnaire link along with an explanation of its nature was circulated via the British Orthodontic Society (BOS) to all 978-email addresses of the Consultant Orthodontists Group (COG) and Orthodontic Specialists Group (OSG) (registered on the UK Specialist List for Orthodontics) members inviting them to participate. Two email reminders were sent to increase the response rate. Chi2 analyses determined the statistical d...
Source: International Orthodontics - July 2, 2019 Category: Dentistry Source Type: research

Factors affecting changes in soft tissue profile after various treatment modalities for skeletal Class II malocclusion: A cross-sectional study
This study was aimed to determine factors affecting changes in soft tissue profile after various treatment modalities for skeletal Class II malocclusion.Materials and methodsA cross-sectional study was conducted using pre-treatment and post-treatment lateral cephalograms of 141 subjects. The sample consisted of 47 patients treated with Clark's Twin Block, 47 with first premolar extractions, and 47 with Class II elastics. The post-treatment cephalograms were superimposed on pre-treatment radiographs using stable landmarks: anterior wall of sella turcica and anterior cranial base. The changes in profile were evaluated by pai...
Source: International Orthodontics - June 29, 2019 Category: Dentistry Source Type: research