3D effects of a bone-anchored intra-oral protraction in treating class III growing patient: a pilot study
ConclusionClass III elastics combined with the Alt-RAMEC activation protocol of the hybrid MARME appliance is an effective treatment method for mild/moderate class III malocclusions. A long-term follow-up and comparisons with other treatment modalities are required. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - September 18, 2019 Category: Dentistry Source Type: research

Thickness of orthodontic clear aligners after thermoforming and after 10  days of intraoral exposure: a prospective clinical study
AbstractBackgroundClear aligners (CA) are among the most chosen orthodontic therapies for patients who require an invisible treatment. Previous studies showed that the thermoforming process and the complexity of the intraoral environment might alter the properties of these devices. The aim of the current prospective clinical study was to assess the thickness changes of the CA after 10  days of intraoral use. The secondary aim was to assess the reproducibility of the thermoforming process, in terms of aligner thickness.Materials and methodsCA from 18 consecutive patients (13 women, 5 men, mean age 28.8  &plusm...
Source: Progress in Orthodontics - September 9, 2019 Category: Dentistry Source Type: research

Maxillary protraction with rapid maxillary expansion and facemask versus skeletal anchorage with mini-implants in class III patients: a non-randomized clinical trial
ConclusionsThe protocol with mini-implants may be an option for the correction of Class III due to maxillary deficiency. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - September 2, 2019 Category: Dentistry Source Type: research

Surgical-orthodontic approach for facial rejuvenation based on a reverse facelift
ConclusionsThe facial mask ages three dimensionally. MMA should be offered to patients who have insufficient skeletal projection and are considering improving their facial appearance beyond just correcting a malocclusion problem. The reverse facelift provides more soft-tissue support, resulting in mid- and lower-face rejuvenation. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - August 26, 2019 Category: Dentistry Source Type: research

Paediatricians ’ awareness on orthodontic problems and related conditions—a national survey
ConclusionsThe results of this study indicate that there was variability regarding orthodontic knowledge among paediatricians. Although the majority were aware of the importance of examination of the oral cavity, they did not have the appropriate knowledge to perform a full and systematic screening for orthodontic problems. The probability of referral was different for the various orthodontic anomalies. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - August 19, 2019 Category: Dentistry Source Type: research

Pediatricians ’ awareness on orthodontic problems and related conditions—a national survey
ConclusionsThe results of this study indicate that there was variability regarding orthodontic knowledge among paediatricians. Although the majority were aware of the importance of examination of the oral cavity, they did not have the appropriate knowledge to perform a full and systematic screening for orthodontic problems. The probability of referral was different for the various orthodontic anomalies. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - August 19, 2019 Category: Dentistry Source Type: research

What effect does functional appliance treatment have on the temporomandibular joint? A systematic review with meta-analysis
ConclusionsCurrently existing evidence from controlled clinical studies on humans indicates that functional appliance treatment is associated with positional and skeletal alterations of the temporomandibular joint in the short term compared to untreated controls. However, the clinical relevance of these changes remains unclear, while the quality of existing evidence is low due to methodological issues of existing studies.Review registrationPROSPERO,CRD42018109271 (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - August 12, 2019 Category: Dentistry Source Type: research

Does audiovisual information affect anxiety and perceived pain levels in miniscrew application? — a within-person randomized controlled trial
ConclusionUsing an audiovisual method to inform patients about miniscrew placement increased anxiety levels but did not affect pain perception. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - August 1, 2019 Category: Dentistry Source Type: research

Correction to: Three-dimensional soft tissue changes according to skeletal changes after mandibular setback surgery by using cone-beam computed tomography and a structured light scanner
. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - July 26, 2019 Category: Dentistry Source Type: research

Correction to: Comparative evaluation of Icon ® resin infiltration and Clinpro™ XT varnish on colour and fluorescence changes of white spot lesions: a randomized controlled trial
In the publication of this article [1], there is an error in the Materials and methods section. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - July 26, 2019 Category: Dentistry Source Type: research

Survival of maxillary and mandibular bonded retainers 10 to 15  years after orthodontic treatment: a retrospective observational study
AbstractBackgroundThe long-term evidence regarding failures of fixed retainers is limited and the aim of this cohort study was to assess the long-term risk of failure of one type of maxillary and two types of mandibular fixed lingual retainers.Trial designRetrospective cohort study.MethodsEighty-eight patients in retention 10 –15 years after orthodontic treatment were included. The type of failure; number of failures per tooth, per patient, and retainer; and adverse effects were assessed by (1) a questionnaire, (2) clinical examination, and (3) screening patients’ clinical charts. Descriptive statistics we...
Source: Progress in Orthodontics - July 22, 2019 Category: Dentistry Source Type: research

Rapid maxillary expansion outcomes according to midpalatal suture maturation levels
This study aims to compare the relationship between skeletal and dental outcomes of rapid maxillary expansion (RME) treatment on cone beam computed tomography (CBCT) images between pre-pubertal peak (pre-peak) and post-pubertal peak (post-peak) patients. The null hypothesis was that there was no difference in the outcomes of RME treatment between the groups.MethodsThirty-two patients who underwent RME treatment were classified according to midpalatal suture maturation levels and then divided into two groups as pre-peak and post-peak. Skeletal and dental measurements were performed on the CBCT images at T0 (pre-treatment st...
Source: Progress in Orthodontics - July 15, 2019 Category: Dentistry Source Type: research

Validation and reliability of a prototype orthodontic bracket debonding device equipped with force-sensitive resistor (FSR): a novel method of measuring orthodontic bracket debonding force in vivo
AbstractBackgroundTo introduce an orthodontic bracket debonding device capable of measuring debonding force clinically by a novel sensor mechanismMaterials and methodA prototype orthodontic debonding device was constructed utilizing a lift-off debonding instrument (LODI) and force-sensitive resistor (FSR). For data interpretation, the force sensor was equipped with a microcontroller and C++ programming software running on a computer. Ninety-nine (99) 0.022-in. conventional metallic brackets were bonded to premolar teeth in vitro by a single clinician applying the same adhesive and bonding technique. For validation, the mea...
Source: Progress in Orthodontics - July 8, 2019 Category: Dentistry Source Type: research

Three-dimensional soft tissue changes according to skeletal changes after mandibular setback surgery by using cone-beam computed tomography and a structured light scanner
ConclusionsSoft tissue changes according to hard tissue movement after MSS exhibited a distinct pattern of an increasing gradient from the lips to the chin in a transverse aspect. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - July 1, 2019 Category: Dentistry Source Type: research

Evaluating the treatment effectiveness and efficiency of Carriere Distalizer: a cephalometric and study model comparison of Class II appliances
ConclusionsThere is no clinically significant skeletal correction induced by Carriere Distalizer in growing patients. Carriere Distalizer can be applied to treatment of mild to moderate Class II dental malocclusion over 6  months on average, although the total treatment time may be prolonged due to various side effects. Overall, the Carriere Distalizer appears to be no more effective or efficient than alternatives in the treatment of Class II malocclusion. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - June 18, 2019 Category: Dentistry Source Type: research

Comparative evaluation of Icon ® resin infiltration and Clinpro™ XT varnish on colour and fluorescence changes of white spot lesions: a randomized controlled trial
ConclusionsClinpro ™ XT varnish showed significantly better improvement than Icon® resin infiltration in restoring the colour and lightness of the WSLs at 3 and 6 months. The fluorescence loss significantly recovered with both intervention methods between immediate application and at 6 months. However, Clinpro™ XT varnish-treated WSLs showed a statistically significant difference compared to the adjacent sound enamel at 6 months. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - June 17, 2019 Category: Dentistry Source Type: research

Effect of mandibular first molar mesialization on alveolar bone height: a split mouth study
ConclusionsSpace closure through extensive tooth movement was identified as a risk factor for vertical ABL, at the mesial sites of mandibular first molars. However, the amount of ABL was not clinically relevant, and thus this treatment option is considered safe in terms of ABL. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - June 10, 2019 Category: Dentistry Source Type: research

Effect of micro-osteoperforation on the rate of canine retraction: a split-mouth randomized controlled trial
AbstractBackgroundAmong the recent modalities introduced to accelerate orthodontic tooth movement (OTM) is micro-osteoperforations (MOPs), in other words, bone puncturing. The aim of this split-mouth trial was to investigate the effects of MOPs on the rate of OTM.MethodsEighteen patients requiring bilateral first premolar extraction and upper canine retraction with maximum anchorage were enrolled in this study. Immediately before canine retraction, three MOPs were randomly allocated to either the right or left sides. MOPs were performed using a mini-screw (1.8  mm diameter, 8 mm length) distal to the canine. ...
Source: Progress in Orthodontics - June 3, 2019 Category: Dentistry Source Type: research

The crown-root morphology of central incisors in different skeletal malocclusions assessed with cone-beam computed tomography
AbstractBackgroundTo determine the discrepancy of crown-root morphology of central incisors among different types of skeletal malocclusion using cone-beam computed tomography (CBCT) and to provide guidance for proper torque expression of anterior teeth and prevention of alveolar fenestration and dehiscence.MethodsIn this retrospective study, a total of 108 CBCT images were obtained (ranging from 18.0 to 30.0  years, mean age 25.8 years). Patients were grouped according to routine sagittal and vertical skeletal malocclusion classification criteria. The patients in sagittal groups were all average vertical patt...
Source: Progress in Orthodontics - May 21, 2019 Category: Dentistry Source Type: research

Distance to alveolar crestal bone: a critical factor in the success of orthodontic mini-implants
AbstractBackgroundTo evaluate the success rate of orthodontic mini-implant (MI) in relation to implant characteristics, mainly implant distance to alveolar crestal bone (AC) and root proximity (RP) to adjacent teeth.MethodsTwo hundred sixty MIs (209 in maxilla, 51 in mandible) were categorized into success (n = 229) and failure (n = 31) groups. Distances from MI to the most adjacent tooth (DT) and to AC level (DC) were measured on periapical radiographs taken with the orthoradial projection technique. Appropriate statistical tests (chi-square,t test, logistic regression) were applied.ResultsDC m...
Source: Progress in Orthodontics - May 13, 2019 Category: Dentistry Source Type: research

Comparative evaluation of enamel surface roughness after debonding using four finishing and polishing systems for residual resin removal —an in vitro study
The objective of this study is to evaluate and compare enamel surface roughness after debonding using four different finishing and polishing systems.Material and methodsAdhesive resin was removed from the buccal surface of 88 premolars after debonding with 4 groups. It included 22 teeth per group: group 1 —One gloss system; group 2—Enhance finishing and polishing system; group 3—fiber reinforced stainbuster bur; and group 4—Soflex discs with wheels. Roughness was measured quantitatively and qualitatively with the help of surface roughness tester and scanning electron Microscope (SEM) respecti vely.R...
Source: Progress in Orthodontics - May 6, 2019 Category: Dentistry Source Type: research

In vitro evaluation of microbial contamination and the disinfecting efficacy of chlorhexidine on orthodontic brackets
ConclusionOrthodontic brackets received from four manufacturers showed high bacterial contamination. Disinfecting ability of 2% chlorhexidine proved highly effective in destroying both gram-positive and gram-negative bacteria. Therefore, use of 2% chlorhexidine in clinical practice for the disinfection of orthodontic brackets is suggested, before placement in the oral cavity. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - May 1, 2019 Category: Dentistry Source Type: research

Effectiveness of an antibacterial primer used with adhesive-coated brackets on enamel demineralization around brackets: an in vivo study
ConclusionThe results of this long-term clinical study indicated no significant difference between the antibacterial monomer-containing primer group and the control group in the efficacy of reducing demineralization throughout the orthodontic treatment. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - April 15, 2019 Category: Dentistry Source Type: research

Effectiveness of reverse twin block with lip pads-RME and face mask with RME in the early treatment of class III malocclusion
AbstractBackgroundThe use of face mask for early treatment of class III malocclusion has proven to be successful, but its compliance and related dental side effects have always been a problem. To overcome this, a new approach has been suggested. The purpose of the present study was to compare the effectiveness of reverse twin block with lip pads and fixed rapid maxillary expansion (RTBLP-RME) appliance and face mask with RME (FM-RME) appliance for early treatment of class III malocclusion.MethodsThe sample consisted of 39 patients with class III malocclusion in the age group of 6 –12 years (mean 10.17). They w...
Source: Progress in Orthodontics - April 8, 2019 Category: Dentistry Source Type: research

Canine edge width and height affect dental esthetics in maxillary canine substitution treatment
ConclusionsThe most esthetic canine shape for canine substitution is a shape with the canine edge width of 62.5% of the central incisor width and the edge height of 0.5 mm gingival to the central incisor edge. The different collocations of the canine edge width and height affect dental esthetics of the canine during canine substitution treatment. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - April 8, 2019 Category: Dentistry Source Type: research

Three-dimensional evaluation of the root resorption of maxillary incisors after the orthodontic traction of bicortically impacted canines: case reports
ConclusionsRoot resorption of the maxillary incisors after the traction of bicortically impacted canines located in a complex position was observed mainly in the apex region, and the amount of root resorption was smaller than 2  mm in all root surfaces. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - April 1, 2019 Category: Dentistry Source Type: research

Functional dysbiosis within dental plaque microbiota in cleft lip and palate patients
ConclusionsFunctional dysbiosis within the plaque microbiota was observed such as difference of the network structure between groups, and may be associated with cariogenicity. The observed functional dysbiosis was an invisible change within the microbiota in the oral cavity of CLP patients. This may emphasize the importance of maintaining good oral hygiene of the patients with cleft anomalies. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - March 25, 2019 Category: Dentistry Source Type: research

3D evaluation of maxillary morphology in Marfan growing subjects: a controlled clinical study
ConclusionMarfan subjects showed a specific palatal morphology with maxillary constriction and deeper palatal vault when compared to a control group of healthy subjects. The constriction and the depth of the palatal vault in Marfan patients worsen from mixed dentition to permanent dentition more then in no syndromic subjects. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - March 18, 2019 Category: Dentistry Source Type: research

Clear aligner treatment: different perspectives between orthodontists and general dentists
ConclusionsThere were some significant differences between orthodontists and general dentists mainly in experience and case selection for clinicians using CA as well as in the reasons provided for not using CA in their practice. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - March 11, 2019 Category: Dentistry Source Type: research

Maxillary posterior intrusion with corticotomy-assisted approaches with zygomatic anchorage —a finite element stress analysis
ConclusionsCorticotomy-assistance effected biomechanical responses of dentoalveolar structures during maxillary posterior intrusion. There was no apparent difference for the stress levels of the root apices between corticotomy scenarios, pointing out that only buccal corticotomy may be a better option in corticotomy-assisted maxillary intrusion. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - March 4, 2019 Category: Dentistry Source Type: research

Are there benefits from using bone-borne maxillary expansion instead of tooth-borne maxillary expansion? A systematic review with meta-analysis
ConclusionsLimited evidence from randomized trials indicates that bone-borne or hybrid tooth-bone-borne RME might present advantages in terms of increased sutural opening, reduced tooth tipping, and lower nasal airway resistance compared to conventional tooth-borne RME. However, the limited number of existing studies and issues in their conduct or reporting preclude the drawing of definite conclusions.Review registrationPROSPERO (CRD42017079107). (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - February 25, 2019 Category: Dentistry Source Type: research

Changes of alveolar bone dehiscence and fenestration after augmented corticotomy-assisted orthodontic treatment: a CBCT evaluation
ConclusionsFor skeletal class III patients, augmented corticotomy-assisted orthodontic treatment is a promising method of improving alveolar bone dehiscence and fenestration for lower anterior teeth, and it also has the potential to protect both lower and upper anterior teeth against dehiscence. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - February 18, 2019 Category: Dentistry Source Type: research

Secondary alveolar bone grafting using autologous versus alloplastic material in the treatment of cleft lip and palate patients: systematic review and meta-analysis
ConclusionAutologous bone and rh-BMP2 graft showed a similar effectiveness in maxillary alveolar reconstruction in patients with unilateral cleft lip and palate assessing bone graft volume and height although rh-BMP2 graft showed a relative shorter length of hospital stay (high uncertainty level). (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - February 11, 2019 Category: Dentistry Source Type: research

Effects of impaction severity of treated palatally displaced canines on periodontal outcomes: a retrospective study
AbstractBackgroundEven though periodontal health was suggested to be not related to the traction technique, some other variables might influence the esthetic outcome of palatally displaced canines (PDC) when aligned, such as the initial position and impaction rate of the canine before treatment. The purpose of the present study was therefore to evaluate the existing correlations between periodontal health outcome of PDC after their exposure and alignment and their initial position identified according to the different rates of impaction severity.Materials and methodsThe final sample enrolled 293 PDC which satisfied inclusi...
Source: Progress in Orthodontics - February 4, 2019 Category: Dentistry Source Type: research

Clinical performance of uncoated and precoated polymer mesh base ceramic brackets
ConclusionThe operator-coated InVu brackets demonstrated a lower failure rate when compared to the Readi-Base eXact pre-applied adhesive InVu brackets. The debonding procedure was safe for both bracket types. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - January 28, 2019 Category: Dentistry Source Type: research

A finite element analysis of the effects of archwire size on orthodontic tooth movement in extraction space closure with miniscrew sliding mechanics
ConclusionsWhen decreasing the archwire size, a play of the archwire-bracket slot, as well as the elastic deformation of the archwire, resulted in lingual tipping of the incisors. This tipping led to extrusion of the incisors. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - January 21, 2019 Category: Dentistry Source Type: research

Maxillofacial morphological factors related to acceleration of maxillary growth attributed to facial mask treatment: a structural superimposition study
ConclusionsStructural superimposition analysis showed that counter-clockwise rotation of the maxilla and changes in the distance from the pterygomaxillary fissure to the maxillary anterior alveolus responded most to the orthopedic force of facial mask treatment. The analysis implicated that the pterygoid fissure –palatine’s pyramidal process conjugation responds most to facial mask treatment among maxillofacial sutures and conjugation, and that the difference in the response induces maxillary counter-clockwise rotation. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - January 14, 2019 Category: Dentistry Source Type: research

The mechanical behavior of as received and retrieved nickel titanium orthodontic archwires
ConclusionsThe aging of NiTi archwires influences the force constancy expressed. The behavior of the wires changes depending on the size, brand, and type of retrieval protocol. In terms of performance, the poorest is represented by all wires retrieved in vitro and in vivo group C2 (moderate to severe crowding). (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - January 7, 2019 Category: Dentistry Source Type: research

United Reference Method for three-dimensional treatment evaluation
ConclusionURM showed adequate reliability so it can be used to produce three-dimensional descriptive data of craniofacial structural changes. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - December 3, 2018 Category: Dentistry Source Type: research

Three-dimensional soft tissue analysis of the face following micro-implant-supported maxillary skeletal expansion
AbstractBackgroundSkeletal maxillary expander (MSE) is one of the more recent expander designs being utilized for skeletal expansion by splitting the midpalatal sutures applying forces through palatal micro-implants. Its effects on the soft tissue remain a question asked by both patients and clinicians. The aim of this study was to analyze and quantify soft tissue facial changes induced by MSE.Methods3D facial images (3dMD) were used to capture face scans of 25 patients generating 3D soft tissue meshes before expansion (T0), right after expansion (T1), and 1  year in retention (T2). MATLAB was then used, utilizing non...
Source: Progress in Orthodontics - November 19, 2018 Category: Dentistry Source Type: research

New application of dynamic magnetic resonance imaging for the assessment of deglutitive tongue movement
ConclusionsSegmented cine-MR imaging combined with static MR images is useful for assessing soft tissue motion during deglutition. This method is particularly useful in dentistry to evaluate the relationship between tongue function and maxillofacial morphology in terms of orthodontic treatment and orofacial myofunctional therapy, and for improving tongue movement during speech therapy. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - November 12, 2018 Category: Dentistry Source Type: research

Gender and growth variation in palatal bone thickness and density for mini-implant placement
The objective was to compare the palatal bone thickness (PBT) and palatal bone density (PBD) in the anterior, middle, and posterior part of the palate in males and females.MethodsThis retrospective study reviewed cone beam computed tomography scans of 359 patients. The scans were divided into 99 growing males, 105 growing females, 74 non-growing males, and 81 non-growing females. The measurements of PBT and PBD were made in between the canine and first premolar, the first premolar and second premolar, the second premolar and first molar, and the first molar and second molar. The measurements were made in the center of the ...
Source: Progress in Orthodontics - November 5, 2018 Category: Dentistry Source Type: research

Comparison of piezocision and discision methods in orthodontic treatment
ConclusionsThis is the first clinical orthodontic study to assess the effect of discision on the rate of orthodontic tooth movement. Discision is comparable to piezocision in terms of tooth movement acceleration, pain level, and periodontal status. The discision seems to be effective in reducing the time of orthodontic treatment. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - October 29, 2018 Category: Dentistry Source Type: research

Early Class III treatment with Hybrid-Hyrax -Facemask in comparison to Hybrid-Hyrax-Mentoplate – skeletal and dental outcomes
ConclusionBoth treatments achieve comparable rates of maxillary protraction, without dentoalveolar side effects. Skeletal anchorage with symphysial plates in the mandible provides greater vertical control and might be the treatment of choice in high angle patients. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - October 22, 2018 Category: Dentistry Source Type: research

Zygomaticomaxillary modifications in the horizontal plane induced by micro-implant-supported skeletal expander, analyzed with CBCT images
ConclusionsIn the horizontal plane, the maxillary and zygomatic bones and the whole zygomatic arch were significantly displaced in a lateral direction after treatment with MSE. The center of rotation for the zygomaticomaxillary complex was located near the proximal portion of the zygomatic process of the temporal bone, more posteriorly and more laterally than what has been reported in the literature for tooth-borne expanders. Bone bending takes place in the zygomatic process of the temporal bone during miniscrew-supported maxillary expansion. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - October 22, 2018 Category: Dentistry Source Type: research

Early Class III treatment with Hybrid-Hyrax – Facemask in comparison to Hybrid-Hyrax-Mentoplate – skeletal and dental outcomes
ConclusionBoth treatments achieve comparable rates of maxillary protraction, without dentoalveolar side effects. Skeletal anchorage with symphysial plates in the mandible provides greater vertical control and might be the treatment of choice in high angle patients. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - October 22, 2018 Category: Dentistry Source Type: research

The immediate effect of alternate rapid maxillary expansions and constrictions on the alveolus: a retrospective cone beam computed tomography study
AbstractBackgroundRapid maxillary expansion reduced the expander ’s anchor teeth buccal alveolar bone thickness. However, the effects of alternate rapid maxillary expansions and constrictions (Alt-RAMEC) on the expander’s anchor teeth alveolar thickness has not been assessed. The purpose of this retrospective study was to evaluate the effects of Alt-RAMEC on the alveolus surrounding the anchor teeth of a double-hinged expander.MethodsTwenty-six individuals, including 12 males (11.5  ± 1.00 years) and 14 females (11.5 ± 0.90 years), who had double-hinged expand...
Source: Progress in Orthodontics - October 15, 2018 Category: Dentistry Source Type: research

The inflection point: a torque reference for lingual bracket positioning on the palatal surface curvature of the maxillary central incisor
AbstractBackgroundContrary to buccal orthodontics, lingual orthodontics has no reference for vertical bracket positioning on the maxillary central incisor. The aim of this study was to provide a reference point in relation to torque for lingual bracket positioning on the palatal surface curvature (PSC) of the maxillary central incisor.MethodsCone beam computed tomography (CBCT) radiographs of 50 right maxillary central incisors from archives of a dental radiographic center were transferred to Photoshop, where their PSC was traced using pen-tool. The PSC torque angle values of the incisors were calculated in Excel using cub...
Source: Progress in Orthodontics - October 8, 2018 Category: Dentistry Source Type: research

The difference of stress distribution of maxillary expansion using rapid maxillary expander (RME) and maxillary skeletal expander (MSE) —a finite element analysis
ConclusionsThere were significant differences of stress distribution of maxillary expansion measured in the ROIs in the craniomaxillary 3D model using RME and MSE. (Source: Progress in Orthodontics)
Source: Progress in Orthodontics - October 3, 2018 Category: Dentistry Source Type: research