The use of SPHARM-PDM and mean latitude axis to evaluate airway changes.
Abstract OBJECTIVE: To introduce new 3-D imaging techniques to characterize shape and volume changes of the oropharyngeal space after bilateral sagittal split osteotomy (BSSO) advancement. MATERIALS AND METHODS: Longitudinal cone-beam computed tomography (CBCT) scans were obtained for 20 patients undergoing BSSO advancement at three time points (T1 = presurgery, T2 = splint removal, and T3 = 1 year after surgery). Segmentation of the airway was performed using the following boundaries: hard palate/posterior nasal spine superiorly and lower border of C3 to the base of the epiglottis inferiorly. For shape measu...
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Nguyen T, Phillips C, Paniagua B Tags: Angle Orthod Source Type: research

Association of genetic polymorphism and external apical root resorption.
Abstract OBJECTIVE: To evaluate the relationship between genetic polymorphism and external apical root resorption. METHODOLOGY: The protocol was prepared and registered on PROSPERO. Two reviewers independently conducted a comprehensive literature search. The MEDLINE, Embase, Cochrane, and PubMed databases were searched. In addition, the bibliographies of all relevant articles and textbooks were manually searched. RESULTS: Thirteen studies met the inclusion criteria. Four studies were classified as low-quality studies (score
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Aminoshariae A, Aminoshariae A, Valiathan M, Kulild JC Tags: Angle Orthod Source Type: research

Dentoskeletal effects produced by removable palatal crib, bonded spurs, and chincup therapy in growing children with anterior open bite.
CONCLUSIONS: A removable palatal crib provided an improvement in OB (97.5%), followed by the bonded spurs (84.5%). Conversely, the chincup-only group did not have positive OB effects. PMID: 27159552 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Insabralde NM, de Almeida RR, Henriques JF, Fernandes TM, Flores-Mir C, de Almeida MR Tags: Angle Orthod Source Type: research

Efficacy of different methods to reduce pain during debonding of orthodontic brackets.
CONCLUSIONS: The stress relief method showed no difference when compared with the other groups. Finger pressure was more effective than the elastomeric wafer in the lower jaw. Higher pain levels were recorded for the anterior regions with the elastomeric wafer. Females and pain catastrophizers gave higher VAS scores. PMID: 27172508 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Bavbek NC, Tuncer BB, Tortop T, Celik B Tags: Angle Orthod Source Type: research

Assessment of vertical changes during maxillary expansion using quad helix or bonded rapid maxillary expander.
CONCLUSION: Overall, both the quad helix expander and the bonded rapid maxillary expander showed minimal vertical changes during palatal expansion treatment. The differences at T2 suggested that the quad helix expander had more control over skeletal vertical measurements. When comparing treatment results to untreated predicted growth values, the quad helix expander appeared to better maintain lower facial height and the bonded rapid maxillary expander appeared to better maintain the maxillary first molar vertical height. PMID: 27182780 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Conroy-Piskai C, Galang-Boquiren MT, Obrez A, Viana MG, Oppermann N, Sanchez F, Edgren B, Kusnoto B Tags: Angle Orthod Source Type: research

Dynamic smile evaluation in different skeletal patterns.
Abstract OBJECTIVE: To evaluate dynamic smile in different skeletal patterns and to correlate vertical smile parameters with the underlying causative factors. MATERIALS AND METHODS: A total of 150 participants ranging in age from 16-25 years were selected and divided into one of three groups-horizontal, average, and vertical skeletal pattern-using the following three cephalometric parameters: SN-MP, FMA, and Jarabak ratio. Videographic records of smile were obtained, and measurements were recorded and analyzed at rest, including upper lip length, and during smile, including maxillary incisal display, interlab...
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Siddiqui N, Tandon P, Singh A, Haryani J Tags: Angle Orthod Source Type: research

Children's perceptions of smile esthetics and their influence on social judgment.
CONCLUSIONS: Smile esthetics influence social perception during childhood and adolescence. However, thresholds of smile esthetic acceptance in children and adolescents are still not available. PMID: 27196785 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Rossini G, Parrini S, Castroflorio T, Fortini A, Deregibus A, Debernardi CL Tags: Angle Orthod Source Type: research

Forces and moments delivered by novel, thinner PET-G aligners during labiopalatal bodily movement of a maxillary central incisor: An in vitro study.
CONCLUSIONS: Novel "leveling" aligners with reduced thickness may reduce overloading of individual teeth during aligner therapy. Due to form instability of 0.3-mm aligners, we suggest a novel sequence of 0.4-0.5-0.75 mm for aligner systems using several foil thicknesses for load graduation within single setup steps. This would combine low stiffness of the initial aligner and relatively constant load increases throughout the treatment. PMID: 27224904 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Elkholy F, Schmidt F, Jäger R, Lapatki BG Tags: Angle Orthod Source Type: research

Letters From Our Readers.
PMID: 27792419 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Farias R, Miguens S, Closs DL Tags: Angle Orthod Source Type: research

Orthodontic Root Resorption: A New Perspective.
PMID: 27792420 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Brezniak N, Wasserstein A Tags: Angle Orthod Source Type: research

Velopharyngeal changes after maxillary distraction in cleft patients using a rigid external distraction device: A retrospective study.
Abstract OBJECTIVE:  To evaluate early and late velopharyngeal changes in cleft lip and palate (CLP) patients after use of the Rigid External Distractor (RED) device and to correlate these changes to the amount of maxillary advancement. MATERIALS AND METHODS:  Thirty Class III CLP patients were included in the study. Maxillary advancement was performed using the RED device in combination with titanium miniplates and screws for anchorage. Lateral cephalograms, nasometer, and nasopharyngoscope records were taken before distraction, immediately after distraction, and 1 year after distraction. A paired ...
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Taha M, Elsheikh YM Tags: Angle Orthod Source Type: research

Letters From Our Readers.
PMID: 27792422 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Devi A, Sathyanarayana HP, Kailasam V Tags: Angle Orthod Source Type: research

The World of Edward Hartley Angle, MD, DDS.
Authors: PMID: 27792423 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Tags: Angle Orthod Source Type: research

Academic Orthodontic Opportunities.
Authors: PMID: 27792424 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Tags: Angle Orthod Source Type: research

Letters From Our Readers.
PMID: 27792425 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Pavoni C, Masucci C, Cerroni S, Franchi L, Cozza P Tags: Angle Orthod Source Type: research

Letters From Our Readers.
PMID: 27792426 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Fulin J, Juan L Tags: Angle Orthod Source Type: research

Changes in salivary periodontal pathogens after orthodontic treatment: An in vivo prospective study.
CONCLUSION:   The higher salivary levels of Aa and Fn after debonding suggests that the risk of periodontal problems cannot be completely eliminated by the removal of fixed orthodontic appliances during the initial retention period, despite improved oral hygiene. PMID: 27792427 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 1, 2016 Category: Dentistry Authors: Kim K, Jung WS, Cho S, Ahn SJ Tags: Angle Orthod Source Type: research

Rapid 3D mandibular superimposition for growing patients.
CONCLUSION: The rapid superimposition was precise for assessing dentoalveolar changes and structures close to the registration area. However, evaluation of the condyles and ramus area had limitations and needs improvement. PMID: 27767348 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 21, 2016 Category: Dentistry Authors: Koerich L, Weissheimer A, de Menezes LM, Lindauer SJ Tags: Angle Orthod Source Type: research

Geometric morphometric analysis of the palatal morphology in children with impacted incisors: A three-dimensional evaluation.
CONCLUSION: The absence of maxillary central incisors over the physiological age of eruption influenced the development of the palatal morphology compared with subjects without eruption anomalies. PMID: 27762606 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 20, 2016 Category: Dentistry Authors: Pavoni C, Paoloni V, Ghislanzoni LT, Laganà G, Cozza P Tags: Angle Orthod Source Type: research

Class II subdivision treatment with the Forsus Fatigue Resistant Device vs intermaxillary elastics.
Abstract OBJECTIVE: To compare the effectiveness of comprehensive fixed appliance treatments implemented in combination with Forsus or intermaxillary elastics in Class II subdivision subjects. MATERIALS AND METHODS: Twenty-eight Class II subdivision patients were allocated to two groups using matched randomization: Forsus group (mean age, 14.19 ± 1.02 years) and elastics group (mean age, 13.75 ± 1.16 years). Patients received fixed appliance therapy in combination with either Forsus or intermaxillary elastics. The study was conducted on lateral cephalograms and digital models acquired before ort...
Source: The Angle Orthodontist - October 13, 2016 Category: Dentistry Authors: Aras I, Pasaoglu A Tags: Angle Orthod Source Type: research

Characterization of the coatings covering esthetic orthodontic archwires and their influence on the bending and frictional properties.
CONCLUSIONS: Orthodontic coated wires with small inner alloy cores withstand less force than expected and may be unsuitable for establishing sufficient tooth movement. The frictional force of coated wires is influenced by total cross-section diameter, inner core diameter, nanohardness, nanoelastic modulus, and elastic modulus. PMID: 27731649 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 12, 2016 Category: Dentistry Authors: Muguruma T, Iijima M, Yuasa T, Kawaguchi K, Mizoguchi I Tags: Angle Orthod Source Type: research

Dentofacial traits in association with lower incisor alveolar cancellous bone thickness: A multiple regression analysis.
CONCLUSIONS: The bony support of lower incisors is significantly associated with several dentofacial traits. Reduced lower incisor bony support was statistically associated with increased vertical facial pattern, transverse jaw discrepancy, thinner mandibular symphyseal width, and smaller lower incisor cervical diameter. PMID: 27718605 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 10, 2016 Category: Dentistry Authors: Qu X, Liu Z, Wang Y, Fang Y, Du M, He H Tags: Angle Orthod Source Type: research

Effect of occlusal plane control procedure on hyoid bone position and pharyngeal airway of hyperdivergent skeletal Class II patients.
CONCLUSIONS: The customized occlusal plane control procedure was effective for hyperdivergent skeletal Class II patients: The occlusal plane rotated counterclockwise, followed by a counterclockwise rotation of the mandibular plane. The hyoid bone moved anteriorly and superiorly, accompanied by its counterclockwise rotation. However, this procedure did not induce significant alteration of the pharyngeal airway space. PMID: 27715137 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 7, 2016 Category: Dentistry Authors: Li X, Zhao Q, Zhao R, Gao M, Gao X, Lai W Tags: Angle Orthod Source Type: research

Cadherin-11 modulates cell morphology and collagen synthesis in periodontal ligament cells under mechanical stress.
CONCLUSIONS: Results of this study suggest that cadherin-11 is expressed in PDLCs and modulates PDLC morphology and collagen synthesis in response to mechanical stress, which may play an important role in the homeostasis and remodeling of the PDL under mechanical stimulation. PMID: 27689865 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 30, 2016 Category: Dentistry Authors: Feng L, Zhang Y, Kou X, Yang R, Liu D, Wang X, Song Y, Cao H, He D, Gan Y, Zhou Y Tags: Angle Orthod Source Type: research

Comparison of the effects of mini-implant and traditional anchorage on patients with maxillary dentoalveolar protrusion: A systematic review.
CONCLUSIONS: Mini-implant anchorage was more effective in retracting the anterior teeth, produced less anchorage loss, and had a greater effect on SN-MP for the high-angle patients than did traditional anchorage. Both mini-implants and traditional anchorage underwent decreases in on U1-SN and SNA. More qualified RCTs are required to make reliable recommendations about the anchorage capacity of mini-implant and traditional anchorage in patients with maxillary dentoalveolar protrusion, especially on the UL-E plane, NLA, and G-Sn-Pg. PMID: 27684189 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 29, 2016 Category: Dentistry Authors: Xu Y, Xie J Tags: Angle Orthod Source Type: research

Eruption rates of lower second premolars at different development stages evaluated with cone-beam computed tomography.
Abstract OBJECTIVE: To evaluate and compare the eruption rates of lower second premolars (LPm2) at different developmental stages using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: Retrospectively, 31 individuals (9.77 ± 1.25 years) had their LPm2 scored according to the Demirjian method, and afterwards they were split into three groups according to developmental stage, as follows: D = complete-formed crowns; E = root length less than crown height; and F = root length greater than or equal to crown height. Linear distances from the LPm2 crown tip to the anatomical reference line (ARL) a...
Source: The Angle Orthodontist - September 29, 2016 Category: Dentistry Authors: Rinaldi MR, de Lima EM, de Menezes LM, Rizzatto SM, Matje PR, Ribeiro RV Tags: Angle Orthod Source Type: research

Long-term skeletodental stability of mandibular symphyseal distraction osteogenesis: Tooth-borne vs. hybrid distraction appliances.
Abstract OBJECTIVE: To evaluate and compare the long-term skeletodental stability of mandibular symphyseal distraction osteogenesis (MSDO) achieved with the use of tooth-borne vs. hybrid distraction appliances. MATERIALS AND METHODS: Posttreatment and follow-up orthodontic records were collected for 33 patients. The 14 patients who underwent distraction with a tooth-borne appliance had a mean follow-up of 5.08 years. The 19 patients who underwent distraction with a hybrid appliance had a mean follow-up of 6.07 years. Records included intraoral photographs, study models, postero-anterior cephalometric radiogra...
Source: The Angle Orthodontist - September 21, 2016 Category: Dentistry Authors: Durham JN, King JW, Robinson QC, Trojan TM Tags: Angle Orthod Source Type: research

Predictors of postretention stability of mandibular dental arch dimensions in patients treated with a lip bumper during mixed dentition followed by fixed appliances.
CONCLUSIONS: The best predictors of an average 4-year postretention mandibular dental arch stability after treatment with a lip bumper followed by full fixed appliances were intermolar and interpremolar width increases during lip bumper therapy. The amount of relapse in this crowding could be considered clinically irrelevant. PMID: 27654628 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 21, 2016 Category: Dentistry Authors: Raucci G, Pachêco-Pereira C, Elyasi M, d'Apuzzo F, Flores-Mir C, Perillo L Tags: Angle Orthod Source Type: research

Gifts from orthodontists to general dentists.
CONCLUSIONS: General practitioners refer patients to orthodontists and receive gifts from them. The number and value of the gifts reflects the number of referrals they make. PMID: 27654629 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 21, 2016 Category: Dentistry Authors: Al-Mahdi A, Firestone AR, Beck F, Fischbach H Tags: Angle Orthod Source Type: research

Effectiveness of a motionless ultrasonic toothbrush in reducing plaque and gingival inflammation in patients with fixed orthodontic appliances.
CONCLUSION: Manual toothbrushing performed better than brushing with the motionless ultrasonic toothbrush in plaque removal on the bracket side in orthodontic patients. However, no difference was observed in terms of gingival status and the numbers of mutans streptococci. PMID: 27636178 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 16, 2016 Category: Dentistry Authors: Saruttichart T, Chantarawaratit PO, Leevailoj C, Thanyasrisung P, Pitiphat W, Matangkasombut O Tags: Angle Orthod Source Type: research

Three-dimensional analyses of palatal morphology and its relation to upper airway area in obstructive sleep apnea.
Abstract OBJECTIVE: To evaluate the relationship between palatal morphology and pharyngeal airway morphology in patients who have obstructive sleep apnea (OSA) and compare with a nonsnoring and nonapneic control group. MATERIALS AND METHODS: Three-dimensional maxillary dental cast measurements from 25 OSA patients (6 women, 19 men) with a mean age of 41.5 (4.8) years, and 25 control group participants (14 women, 11 men) without any symptom of OSA with a mean age of 38.3 (3.7) were correlated with an analysis of pharyngeal area evaluated with lateral cephalograms. Intermolar and intercanine widths and palatal ...
Source: The Angle Orthodontist - September 13, 2016 Category: Dentistry Authors: Kecik D Tags: Angle Orthod Source Type: research

Antimicrobial and physical characteristics of orthodontic primers containing antimicrobial agents.
CONCLUSION: Incorporation of CHX into an orthodontic primer may help prevent enamel demineralization around surfaces without compromising its physical properties. PMID: 27598781 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 6, 2016 Category: Dentistry Authors: Chung SH, Cho S, Kim K, Lim BS, Ahn SJ Tags: Angle Orthod Source Type: research

Orthodontic treatment stability predictors: A retrospective longitudinal study.
CONCLUSIONS: Within the study, 7.1% presented absolute stability and 68.6% presented relative stability. Lower anterior segment alignment and overbite were the most unstable occlusal features and tended to worsen. Fixed retainer (odds ratio [OR] 0.31; 95% confidence interval [CI] 0.10-0.98) as a protective factor and years without retention (OR 1.32; 95% CI 1.03-1.68) as a risk factor are predictor variables of instability in the case of lower anterior segment alignment. The PAR value at the end of treatment (OR 1.29; 95% CI 1.08-1.54) and extractions (OR 4.76; 95% CI 1.05-21.6) before treatment are predictors for midline ...
Source: The Angle Orthodontist - September 6, 2016 Category: Dentistry Authors: de Bernabé PG, Montiel-Company JM, Paredes-Gallardo V, Gandía-Franco JL, Bellot-Arcís C Tags: Angle Orthod Source Type: research

Dimensional changes of dental arches produced by fixed and removable palatal cribs: A prospective, randomized, controlled study.
CONCLUSIONS: Both the treatment protocols are similarly effective for anterior open bite correction, providing an overbite increase with dentoalveolar arch changes, especially in the anterior region. PMID: 27598906 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 6, 2016 Category: Dentistry Authors: Slaviero T, Fernandes TM, Oltramari-Navarro PV, de Castro Ferreira Conti AC, Poleti ML, de Almeida MR Tags: Angle Orthod Source Type: research

Changes in apical base sagittal relationship in Class II malocclusion treatment with and without premolar extractions: A systematic review and meta-analysis.
Abstract OBJECTIVE: To evaluate the changes in apical base sagittal relationship in Class II treatment with and without premolar extractions. MATERIALS AND METHODS: Controlled studies evaluating ANB angle changes after Class II Division 1 malocclusion treatment with or without premolar extractions were considered. Electronic databases (PubMed, Embase, Web of Science, Scopus, The Cochrane Library, Lilacs, and Google Scholar) without limitations regarding publication year or language were searched. Risk of bias was assessed with Risk Of Bias in Non-randomized Studies-of Interventions tool of the Cochrane Collab...
Source: The Angle Orthodontist - September 6, 2016 Category: Dentistry Authors: Janson G, Aliaga-Del Castillo A, Niederberger A Tags: Angle Orthod Source Type: research

A randomized clinical trial comparing mandibular incisor proclination produced by fixed labial appliances and clear aligners.
CONCLUSION:   There was no difference in the amount of mandibular incisor proclination produced by clear aligners and fixed labial appliances in mild crowding cases. PMID: 27571371 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 31, 2016 Category: Dentistry Authors: Hennessy J, Garvey T, Al-Awadhi EA Tags: Angle Orthod Source Type: research

Looking for the Future.
PMID: 27571372 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 31, 2016 Category: Dentistry Authors: Lindauer SJ Tags: Angle Orthod Source Type: research

Letters From Our Readers.
PMID: 27571373 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 31, 2016 Category: Dentistry Authors: Thakkar S, Singh H Tags: Angle Orthod Source Type: research

Letters From Our Readers.
PMID: 27571374 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 31, 2016 Category: Dentistry Authors: Alhadlaq A, Alkhadra T, El-Bialy T Tags: Angle Orthod Source Type: research

Academic Orthodontic Opportunities.
Authors: PMID: 27571375 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 31, 2016 Category: Dentistry Tags: Angle Orthod Source Type: research

Errata.
Authors: PMID: 27571376 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 31, 2016 Category: Dentistry Tags: Angle Orthod Source Type: research

Errata.
Authors: PMID: 27571377 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 31, 2016 Category: Dentistry Tags: Angle Orthod Source Type: research

Speech effects of Hawley and vacuum-formed retainers by acoustic analysis: A single-center randomized controlled trial.
Abstract OBJECTIVE: To investigate the effects of alteration on speech articulation of adult patients between Hawley retainers and vacuum-formed retainers by an objective acoustic analysis of vowels and voiceless fricatives. MATERIALS AND METHODS: Twenty adults, aged 19.0-29.0 years, who had just finished active orthodontic treatment were included in this study. They were divided into a Hawley retainer group and a vacuum-formed retainer group by sortation randomization method. The assessment of speech sounds was performed objectively using acoustic analysis before and after retainer application at the followi...
Source: The Angle Orthodontist - August 24, 2016 Category: Dentistry Authors: Wan J, Wang T, Pei X, Wan Q, Feng W, Chen J Tags: Angle Orthod Source Type: research

Twelve-year follow-up of mandibular incisor stability: Comparison between two bonded lingual orthodontic retainers.
CONCLUSIONS: Both a canine-to-canine retainer bonded only to the canines and a twistflex retainer 3-3 bonded to each tooth can be recommended. However, neither of the retention types prevented long-term changes of mandibular incisor irregularity or available space for the mandibular incisors after removal of the retainers. PMID: 27552722 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 23, 2016 Category: Dentistry Authors: Schütz-Fransson U, Lindsten R, Bjerklin K, Bondemark L Tags: Angle Orthod Source Type: research

Biomechanical characterization of the periodontal ligament: Orthodontic tooth movement.
Abstract OBJECTIVE: To quantify the biomechanical properties of the bovine periodontal ligament (PDL) in postmortem sections and to apply these properties to study orthodontic tooth intrusion using finite element analysis (FEA). We hypothesized that PDL's property inherited heterogeneous (anatomical dependency) and nonlinear stress-strain behavior that could aid FEA to delineate force vectors with various rectangular archwires. MATERIALS AND METHODS: A dynamic mechanical analyzer was used to quantify the stress-strain behavior of bovine PDL. Uniaxial tension tests using three force levels (0.5, 1, and 3 N) an...
Source: The Angle Orthodontist - August 19, 2016 Category: Dentistry Authors: Uhlir R, Mayo V, Lin PH, Chen S, Lee YT, Hershey G, Lin FC, Ko CC Tags: Angle Orthod Source Type: research

Lip line changes in Class III facial asymmetry patients after orthodontic camouflage treatment, one-jaw surgery, and two-jaw surgery: A preliminary study.
CONCLUSIONS: Orthognathic surgery resulted in significant correction of LLC in Class III craniofacial asymmetry patients, while OCT did not. PMID: 27529732 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 16, 2016 Category: Dentistry Authors: Lee GC, Yoo JK, Kim SH, Moon CH Tags: Angle Orthod Source Type: research

Sequential changes of postoperative condylar position in patients with facial asymmetry.
CONCLUSIONS: The overall condylar position after an orthognathic surgery in patients with facial asymmetry was relatively stable at 1 year after surgery. However, the condyle on the affected side during the first 3 months after surgery should be carefully monitored for surgical stability. PMID: 27529733 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 16, 2016 Category: Dentistry Authors: Tyan S, Kim HH, Park KH, Kim SJ, Kim KA, Ahn HW Tags: Angle Orthod Source Type: research

Influence of skeletal class in the morphology of cervical vertebrae: A study using cone beam computed tomography.
des V Abstract OBJECTIVES: To quantify the prevalence of cervical vertebrae anomalies and to analyze any association between them and skeletal malocclusions or head posture positions in the same study. MATERIALS AND METHODS: Two hundred forty patients who were attending the Department of Orthodontics of the University of Valencia for orthodontic treatment were selected and divided into three groups: skeletal Class I (control group, 0°
Source: The Angle Orthodontist - August 11, 2016 Category: Dentistry Authors: Aranitasi L, Tarazona B, Zamora N, Gandía JL, Paredes V Tags: Angle Orthod Source Type: research

Modern trends in Class III orthognathic treatment:A time series analysis.
CONCLUSION: Results of the time series analysis might provide clinicians with some insights into current surgical and orthodontic management. PMID: 27513030 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 11, 2016 Category: Dentistry Authors: Lee CH, Park HH, Seo BM, Lee SJ Tags: Angle Orthod Source Type: research

Objective assessment of compliance with intra- and extraoral removable appliances.
Abstract OBJECTIVE: To conduct an objective assessment of the level of compliance in young patients prescribed various types of removable appliances and to determine the influence of device type, treatment duration, and patient age, gender, psychological maturity, and awareness of monitoring on compliance. MATERIALS AND METHODS: A total of 30 patients were fitted with either a class 2 (Frankel or bionator) or a class 3 (face mask) removable appliance, each bearing a compliance indicator chip, and they were instructed to wear them for 13 hours per day. Compliance was monitored by means of the sensor for an ave...
Source: The Angle Orthodontist - August 10, 2016 Category: Dentistry Authors: Arreghini A, Trigila S, Lombardo L, Siciliani G Tags: Angle Orthod Source Type: research