Influence of low-level laser on bone remodeling during induced tooth movement in rats.
Conclusions: Low-level laser application significantly increased the osteoclastic but not the osteoblastic activity during the initial phases of tooth movement. In addition, the osteoclastic activity was dose-dependent. PMID: 23672280 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 14, 2013 Category: Dentistry Authors: Cossetin E, Janson G, de Carvalho MG, de Carvalho RA, Henriques JF, Garib D Tags: Angle Orthod Source Type: research

Effects of wobbling angle on the stability measures of orthodontic mini-implants during insertion and removal procedures.
Abstract Abstract Objective: To investigate the effects of wobbling angle on the stability measures of orthodontic mini-implants (OMIs) during insertion and removal procedures in artificial bone blocks. Materials and Methods: A total of 36 OMIs (self-drilling type, cylindrical shape, 7 mm in length, 1.45 mm in diameter) were allocated into three groups according to the amount of wobbling angle (W-0°, W-2°, and W-4° groups; N = 12 per group). The OMIs were installed and subsequently removed from artificial bone blocks (Sawbone) using a driving torque tester with a uniform speed of 28 ...
Source: The Angle Orthodontist - May 10, 2013 Category: Dentistry Authors: Cho IS, Baek SH, Kim YH Tags: Angle Orthod Source Type: research

Segregation analysis of mandibular prognathism in Korean orthognathic surgery patients and their families.
Abstract Abstract Objective: To investigate the existence of genetic influences on the incidence of mandibular prognathism (MP) in Korean Class III patients. Materials and Methods: The probands consisted of 100 Class III patients with MP (51 men and 49 women; mean age, 22.1 ± 5.2 years; SNA, 81.2° ± 3.2°; SNB, 84.1° ± 3.9°) who underwent orthognathic surgery. Using three-generation pedigree charts, questionnaires, and clinical examinations, general information and information regarding MP for a total of 3777 relatives of the probands (1911 men and 1866 women) was ascertain...
Source: The Angle Orthodontist - May 10, 2013 Category: Dentistry Authors: Ko JM, Suh YJ, Hong J, Paeng JY, Baek SH, Kim YH Tags: Angle Orthod Source Type: research

Expression patterns of nociceptin in rats following experimental tooth movement.
Conclusion: The expression levels of nociceptin were elevated following experimental tooth movement. The anesthetic agent used in this study (chloral hydrate) may have an antagonism with nociceptin. Due to bilateral innervation of anterior teeth and bilateral projection of nerve fibers, the expression levels of nociceptin were similar between ipsilateral and contralateral sides. PMID: 23650934 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 8, 2013 Category: Dentistry Authors: Liao L, Hua X, Long H, Ye N, Zhou Y, Wang S, Lai W Tags: Angle Orthod Source Type: research

Coating stability and surface characteristics of esthetic orthodontic coated archwires.
Conclusion: Coated archwires had a low esthetic value as they presented a nondurable coating. The remaining coating showed a severe deterioration and a greater surface roughness than postclinical control counterparts (conventional SS and NiTi wires). PMID: 23650959 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 8, 2013 Category: Dentistry Authors: da Silva DL, Mattos CT, Simão RA, de Oliveira Ruellas AC Tags: Angle Orthod Source Type: research

Bone- and dentoalveolar-anchored dentofacial orthopedics for Class III malocclusion: New approaches, similar objectives?
ano-Reina E Abstract ABSTRACT Objectives:   To analyze the scientific literature and compare in the results of conventional orthopedic appliances with those obtained from recent bone-anchored orthopedics for Class III malocclusion. Materials and Methods:   The literature was systematically reviewed using PubMed/Medline, Scopus, and Scirus databases up to January 2012. Articles were selected by two different researchers (kappa index  =  0.83), based on established inclusion/exclusion criteria. Methodologic quality was classified as high, medium, or low quality. Results:   The search strategy iden...
Source: The Angle Orthodontist - May 1, 2013 Category: Dentistry Authors: Morales-Fernández M, Iglesias-Linares A, Yañez-Vico RM, Mendoza-Mendoza A, Solano-Reina E Tags: Angle Orthod Source Type: research

Supporting Open Access and the AAOF.
PMID: 23621559 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 1, 2013 Category: Dentistry Authors: Lindauer SJ Tags: Angle Orthod Source Type: research

Academic orthodontic opportunities.
Authors: PMID: 23621560 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 1, 2013 Category: Dentistry Tags: Angle Orthod Source Type: research

Mechanical stability and clinical applicability assessment of novel orthodontic mini-implant design.
Conclusions: The primary stability of the N2 is superior to that of the CA design and is promising for both orthodontic and orthopedic clinical applicability, especially under compression force. The short length of the N2 reduces risk of damage to anatomic structures and root proximity during placement and orthodontic treatment. The stability of the N2 may be compromised in areas of high bone density and highly angulated tension force. PMID: 23627420 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - April 29, 2013 Category: Dentistry Authors: Song HN, Hong C, Banh R, Ohebsion T, Asatrian G, Leung HY, Wu BM, Moon W Tags: Angle Orthod Source Type: research

Effect of bracket bevel design and oral environmental factors on frictional resistance.
Abstract Abstract Objective: To investigate the effects of bracket bevel design and oral environmental factors (saliva, temperature) on frictional resistance. Materials and Methods: Five types of brackets, namely a conventional bracket (Omni-arch), an active self-ligating bracket (Clippy), and three passive self-ligating brackets (Carriere, Damon, and Tenbrook T1) coupled with a 0.014-inch austenitic nickel-titanium archwire were tested. In the experimental model, which used a group of five identical brackets, the center bracket was displaced 3 mm to mimic the binding effects. The friction experiments were pe...
Source: The Angle Orthodontist - April 26, 2013 Category: Dentistry Authors: Chang CJ, Lee TM, Liu JK Tags: Angle Orthod Source Type: research

Impact of malocclusion on the quality of life of Saudi children.
Conclusion: These findings suggest that only very severe malocclusion had an impact on the quality of life of the participants. Orthodontists should focus not only on clinical measures of malocclusion but should also consider the impact of severe malocclusion on patients' quality of life. PMID: 23611165 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - April 25, 2013 Category: Dentistry Authors: Dawoodbhoy I, Delgado-Angulo EK, Bernabé E Tags: Angle Orthod Source Type: research

Effects of wear time recording on the patient's compliance.
Conclusion: Mean wear times assessed in this study concur with data of previous studies. Patients tend to overestimate their wear times but become more realistic once they know wear time is being monitored. Objective measurement of wear time allows a more realistic view of compliance by patient and orthodontist. Knowing that wear time is recorded does not necessarily increase the amount of time removable appliances are worn by the patient. PMID: 23611166 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - April 25, 2013 Category: Dentistry Authors: Pauls A, Nienkemper M, Panayotidis A, Wilmes B, Drescher D Tags: Angle Orthod Source Type: research

Photographic assessment of cephalometric measurements.
Conclusions: The photographic method has proven to be a repeatable and reproducible tool provided that a standardized protocol is followed. Therefore, it may be considered a feasible and practical diagnostic alternative, particularly if there is a need for a low-cost and noninvasive method. PMID: 23597034 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - April 18, 2013 Category: Dentistry Authors: de Carvalho Rosas Gomes L, Horta KO, Gandini LG, Gonçalves M, Gonçalves JR Tags: Angle Orthod Source Type: research

Effect of orthodontic treatment on oral health-related quality of life.
Abstract Objective: To assess changes in oral health-related quality of life (OHQoL) in children undergoing fixed orthodontic treatment and compare it to that of two groups not receiving treatment. Materials and Methods: Two hundred eighty-four subjects aged 12-15 years were followed for 2 years; 87 were undergoing treatment at a university clinic (TG), 101 were waiting for treatment at this clinic (WG), and 96 were attending a public school and had never sought treatment (SG). OHQoL was assessed using the Oral Health Impact Profile (OHIP-14). All subjects were examined and interviewed at baseline (T1), ...
Source: The Angle Orthodontist - April 17, 2013 Category: Dentistry Authors: Feu D, Miguel JA, Celeste RK, Oliveira BH Tags: Angle Orthod Source Type: research

Virulence modulation of Streptococcus mutans biofilms by metal ions released from orthodontic appliances.
Conclusion: The laboratory data presented here point to the possibility of virulence increase of S mutans by metal ions commonly released during orthodontic therapy. PMID: 23586445 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - April 15, 2013 Category: Dentistry Authors: Rymovicz AU, Ronsani MM, Grégio AM, Guariza-Filho OG, Tanaka O, Rosa EA Tags: Angle Orthod Source Type: research

Comparison of adverse effects between lingual and labial orthodontic treatment.
Conclusions: The likelihood of overall pain was similar between the two modalities. Patients who underwent lingual orthodontic treatment were more likely to suffer from pain in the tongue and less likely to suffer from pain in the cheek and lip. Lingual orthodontic treatment increased the likelihood of speech difficulty. Eating difficulty, oral hygiene, caries, and treatment duration could not be compared in this systematic review. PMID: 23581503 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - April 12, 2013 Category: Dentistry Authors: Long H, Zhou Y, Pyakurel U, Liao L, Jian F, Xue J, Ye N, Yang X, Wang Y, Lai W Tags: Angle Orthod Source Type: research

Effects of bracket design on critical contact angle.
Conclusions: The relationship between the archwire and bracket slot significantly affects the resistance to sliding. The "edge-off" structure of the Tip-Edge Plus bracket and Transmission Straight Archwire bracket could help to increase the θc value, and to expand the passive configuration range. PMID: 23570249 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - April 9, 2013 Category: Dentistry Authors: Liu X, Ding P, Lin J Tags: Angle Orthod Source Type: research

Unilaterally impacted maxillary central incisor and canine with ipsilateral transposed canine-lateral incisor.
This article describes the treatment of a teenager who had impactions of the left maxillary central incisor and canine as well as ipsilateral canine-lateral incisor transposition. Treatment alternatives and effective orthodontic techniques are delineated. To optimize the treatment results, the impacted maxillary canine was surgically exposed and orthodontically distalized with an innovative cantilever. Subsequently, the deeply impacted maxillary central incisor was uncovered and orthodontically mesialized into the arch. Finally, the displaced maxillary lateral incisor was brought into its normal position. The combined surg...
Source: The Angle Orthodontist - April 5, 2013 Category: Dentistry Authors: Fu PS, Wang JC, Wu YM, Huang TK, Chen WC, Tseng YC, Tseng CH, Hung CC Tags: Angle Orthod Source Type: research

A novel experimental model for studying transverse orthodontic tooth movement in the rat mandible.
Conclusions: This surgical animal model demonstrates that a rat mandible can be surgically manipulated to mimic the one-piece human mandible. This novel model may prove useful in studying mandibular bone remodeling and orthodontic mandibular tooth movement. PMID: 23534351 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 27, 2013 Category: Dentistry Authors: Alsagheer A, Kline LW, Doschak MR, Major PW Tags: Angle Orthod Source Type: research

The influence of lower lip position on the perceived attractiveness of chin prominence.
Conclusions: The chin prominence observed in a progenic patient is deemed less attractive than the combined chin and lower lip prominence observed in a patient with mandibular prognathism. In profiles with a more prominent chin a more protrusive lower lip position was preferred. When the chin was retrusive, a normal lower lip position was preferred to a retrusive lip. PMID: 23530543 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 26, 2013 Category: Dentistry Authors: Modarai F, Donaldson JC, Naini FB Tags: Angle Orthod Source Type: research

Bracket base remnants after orthodontic debonding.
Abstract Abstract Objective: To evaluate whether the debonding procedure leads to restitutio ad integrum of the enamel surface by investigating the presence of enamel within the bracket base remnants after debonding. Materials and Methods: Sixty patients who completed orthodontic treatment with fixed appliances were included. A total of 1068 brackets were microphotographed; the brackets presenting some remnants on the base (n = 818) were selected and analyzed with ImageJ software to measure the remnant area. From this population a statistically significant sample (n = 100) was observed under a scanning electron mi...
Source: The Angle Orthodontist - March 26, 2013 Category: Dentistry Authors: Zanarini M, Gracco A, Lattuca M, Marchionni S, Gatto MR, Bonetti GA Tags: Angle Orthod Source Type: research

The role of occlusal curvatures and maxillary arch dimensions in patients with signs and symptoms of temporomandibular disorders.
Conclusions: Subjects with TMJ sounds tend to have a flatter COS compared to subjects without TMJ sounds. PMID: 23509999 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 19, 2013 Category: Dentistry Authors: Kanavakis G, Mehta N Tags: Angle Orthod Source Type: research

CBCT of skeletal changes following rapid maxillary expansion to increase arch-length with a development-dependent bonded or banded appliance.
Conclusion: Development-dependent appliances (bonded RPE before Mx4s erupt, and a banded device thereafter) provided optimal RME treatment for all children from age 6-15 years. PMID: 23488528 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 14, 2013 Category: Dentistry Authors: Kanomi R, Deguchi T, Kakuno E, Takano-Yamamoto T, Roberts WE Tags: Angle Orthod Source Type: research

Soft tissue changes after mandibular setback and bimaxillary surgery in Class III patients.
Conclusion: Results of this study show soft tissue changes after BSSO and BSSO and Le Fort I and eliminate the deficiencies that were indicated in the meta-analysis of soft tissue changes from a previous study. PMID: 23484631 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 13, 2013 Category: Dentistry Authors: Jokić D, Jokić D, Uglešić V, Macan D, Knežević P Tags: Angle Orthod Source Type: research

The role of the golden proportion in the evaluation of facial esthetics.
Conclusions: Ratios between 3D facial distances were not related to attractiveness. Most of the facial ratios were different from the golden ratio. PMID: 23477386 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 11, 2013 Category: Dentistry Authors: Rossetti A, De Menezes M, Rosati R, Ferrario VF, Sforza C Tags: Angle Orthod Source Type: research

Release of metal ions from fixed orthodontic appliance.
Conclusions: The estimated doses of nickel, chromium, and copper (determined by extrapolation of experimental data) released during the treatment period were far below the toxic dose to humans. This shows that orthodontic treatment might not be a significant source of exposure to these metal ions. PMID: 23477423 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 11, 2013 Category: Dentistry Authors: Mikulewicz M, Chojnacka K, Wołowiec P Tags: Angle Orthod Source Type: research

Correlation between occlusal abnormalities and parameters investigated by three-dimensional facial photography.
Conclusion: Dental Class II with increased overjet and dental Class III with decreased overjet influence soft tissue morphology and are represented on 3D facial scans. PMID: 23473540 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 8, 2013 Category: Dentistry Authors: Godt A, Bechtold TE, Schaupp E, Zeyher C, Koos B, Baas E, Berneburg M Tags: Angle Orthod Source Type: research

Occlusal plane canting reduction accompanies mandibular counterclockwise rotation in camouflaging treatment of hyperdivergent skeletal Class II malocclusion.
Conclusion: Increased OP canting with overerupted incisors is evident in the hyperdivergent skeletal Class II malocclusion. During the camouflaging treatment, reduction of OP canting could occur. It was accompanied by mandibular counterclockwise rotation and intrusion of the maxillary incisor. PMID: 23473541 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 8, 2013 Category: Dentistry Authors: Ye R, Li Y, Li X, Li J, Wang J, Zhao S, Zhao Z Tags: Angle Orthod Source Type: research

Validation of a modified McGill Pain Questionnaire for orthodontic patients.
Abstract Abstract Objective: To assess better and more efficiently the aspects of pain experienced by adolescent orthodontic patients, the McGill Pain Questionnaire-Short Form (MPQ-SF) was modified (MMPQ-SF) and validated. Materials and Methods: Internal and external expert panels developed a MMPQ-SF with 15 descriptors and 4-point Likert severity scales (MMPQ-SF15). Seventy-five subjects undergoing orthodontic treatment gave informed consent. Sixty-one subjects completed the MMPQ-SF15, a visual analogue scale (VAS), and the present pain index (PPI) 24 hours after an orthodontic visit. Respondents were groupe...
Source: The Angle Orthodontist - March 5, 2013 Category: Dentistry Authors: Iwasaki LR, Freytag LE, Schumacher CA, Walker MP, Williams KB Tags: Angle Orthod Source Type: research

Comparison of arch width, alveolar width and buccolingual inclination of teeth between Class II division 1 malocclusion and Class I occlusion.
Abstract OBJECTIVE: To compare the arch width, alveolar width, and buccolingual inclination of maxillary and mandibular posterior teeth between Class II division 1 malocclusion and Class I occlusion. MATERIALS AND METHODS: Forty-five subjects with Class I occlusion and 45 subjects with Class II division 1 malocclusion were selected to measure the maxillary and mandibular arch width and alveolar width of premolars and first molars with digital caliper. Buccolingual inclination of maxillary and mandibular premolars and first molars were measured with a modified universal bevel protractor. RESULTS: All of t...
Source: The Angle Orthodontist - March 1, 2013 Category: Dentistry Authors: Shu R, Han X, Wang Y, Xu H, Ai D, Wang L, Wu Y, Bai D Tags: Angle Orthod Source Type: research

It's a small world…after all.
It's a small world…after all. Angle Orthod. 2013 Mar;83(2):364 Authors: Lindauer SJ PMID: 23458280 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 1, 2013 Category: Dentistry Authors: Lindauer SJ Tags: Angle Orthod Source Type: research

Re: The 100 top-cited articles in orthodontics from 1975 to 2011 by Jifang Hui, Zongkai Han, Guannan Geng, Weijun Yan and Ping Shao. The Angle Orthodontist; on line early: http://dx.doi.org/10.2319/040512-284.1.
PMID: 23458281 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 1, 2013 Category: Dentistry Authors: Yan BX Tags: Angle Orthod Source Type: research

Re response to: the 100 top-cited articles in orthodontics from 1975 to 2011 by Jifang Hui, Zongkai Han, Guannan Geng, Weijun Yan and Ping Shao. The Angle Orthodontist; on line early: http://dx.doi.org/10.2319/040512-284.1.
PMID: 23458282 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - March 1, 2013 Category: Dentistry Authors: Hui J, Han Z, Geng G, Yan W, Shao P Tags: Angle Orthod Source Type: research

Assessment of nickel titanium and beta titanium corrosion resistance behavior in fluoride and chloride environments.
Conclusions: There is a decrease in NiTi corrosion resistance in the presence of fluoride. The corrosion behavior of NiTi alloy depends on fluoride concentration. When 0.02 and 0.04 M of NaF were added to the NaCl solution, NiTi presented localized corrosion. When NaF concentration increased to 0.05, 0.07, and 0.12 M, the alloy presented general corrosion. NiTi corrosion resistance behavior is lower than that of beta titanium. Galvanic coupling of these alloys does not increase corrosion rates. PMID: 23448158 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - February 28, 2013 Category: Dentistry Authors: Kassab EJ, Gomes JP Tags: Angle Orthod Source Type: research

The effect of bone morphometric changes on orthodontic tooth movement in an osteoporotic animal model.
Conclusions: OVX accelerated OTM, while ZOL suppressed it. OTM demonstrated a significant negative relationship with trabecular bone mass. PMID: 23445276 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - February 27, 2013 Category: Dentistry Authors: Hashimoto M, Hotokezaka H, Sirisoontorn I, Nakano T, Arita K, Tanaka M, Yoshida N Tags: Angle Orthod Source Type: research

Dimensional changes of maxillary sinuses and pharyngeal airway in Class III patients undergoing bimaxillary orthognathic surgery.
Conclusion: There was a significant decrease only for lower and total pharyngeal airway volumes in males and a significant decrease in the volume of the maxillary sinuses. PMID: 23438197 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - February 25, 2013 Category: Dentistry Authors: Panou E, Motro M, Ateş M, Acar A, Erverdi N Tags: Angle Orthod Source Type: research

New diagnostic tenet of the esthetic midface for clinical assessment of anterior malar projection.
Abstract Abstract Objective: To determine whether a visual classification of anterior malar support using vector relationships is supported by cephalometric analysis. Materials and Methods: Forty white subjects between the ages of 10 and 12 years, without craniofacial syndromes or previous orthodontic treatment, were equally divided into groups based on visual assessment of negative and positive vector relationships. Group A comprised 20 subjects (10 male, 10 female) exhibiting a positive vector relationship. Group B comprised 20 subjects (10 male, 10 female) displaying a negative vector relationship. ...
Source: The Angle Orthodontist - February 7, 2013 Category: Dentistry Authors: Frey ST Tags: Angle Orthod Source Type: research

Dentofacial changes from fan-type rapid maxillary expansion vs traditional rapid maxillary expansion in early mixed dentition.
Conclusion: The null hypothesis was rejected. There was a difference between the effects of FRME and RME used with an acrylic bonded expansion appliance on dentofacial structures in the early occlusal stages. PMID: 23387338 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - February 6, 2013 Category: Dentistry Authors: Cörekçi B, Göyenç YB Tags: Angle Orthod Source Type: research

Personality traits as a potential predictor of willingness to undergo various orthodontic treatments.
Conclusions: Personality traits are useful in predicting a patient's potential willingness to participate in various orthodontic treatments. The agreeableness dimension provided the most utility in predicting patient willingness. Age, ethnicity, and gender were not significant in predicting patient willingness. PMID: 23373614 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - February 1, 2013 Category: Dentistry Authors: Hansen V, Liu SS, Schrader SM, Dean JA, Stewart KT Tags: Angle Orthod Source Type: research

Caries infiltrant combined with conventional adhesives for sealing sound enamel in vitro.
Conclusions: Within the limitations of this in vitro study, it could be concluded that the use of low-viscosity caries infiltrant prior to application of the tested conventional adhesives increases their protective effect against demineralization. PMID: 23368779 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - January 31, 2013 Category: Dentistry Authors: Yetkiner E, Wegehaupt FJ, Attin R, Attin T Tags: Angle Orthod Source Type: research

Comparison of Chinese and white Bolton standards at age 13.
Conclusions: A 13-year-old combined male-female Chinese Bolton standard was created that demonstrated visually and with metric comparisons that Chinese and white clinically normal subjects have different craniofacial characteristics. These differences should be taken into consideration when an individualized orthodontic treatment plan is developed. PMID: 23368780 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - January 31, 2013 Category: Dentistry Authors: Zhao XG, Hans MG, Palomo JM, Lin JX Tags: Angle Orthod Source Type: research

Open bite treatment using clear aligners.
Abstract Abstract A 35-year-old female patient with dentoalveolar open bite of 4 mm, molar Class I malocclusion, centered midlines, moderate crowding, and labial inclination of the lower incisor was treated with clear aligners to reduce protrusion and close the anterior open bite. The result showed that clear aligners were an effective method with which to correct this malocclusion. The treatment was complete after 18 months. The patient was satisfied with her new appearance and function. PMID: 23363479 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - January 30, 2013 Category: Dentistry Authors: Guarneri MP, Oliverio T, Silvestre I, Lombardo L, Siciliani G Tags: Angle Orthod Source Type: research

Failure of treatment of impacted canines associated with invasive cervical root resorption.
Conclusions: ICRR is a frequently undiagnosed or unrecognized cause of failure of orthodontic resolution of impacted canines and should be distinguished from replacement resorption. CBCT should be used for its early detection and accurate assessment of potential damage to adjacent anchor teeth. PMID: 23343004 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - January 23, 2013 Category: Dentistry Authors: Becker A, Abramovitz I, Chaushu S Tags: Angle Orthod Source Type: research

Influence of malocclusion on the development of masticatory function and mandibular growth.
Conclusions: These findings suggest that optimization of the chewing pattern and acquisition of appropriate masticatory function is impeded by malocclusion. Altered mechanical loading to the mandible may cause significant reduction of condylar width and mandibular BMD. PMID: 23327417 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - January 17, 2013 Category: Dentistry Authors: Nakamura A, Zeredo JL, Utsumi D, Fujishita A, Koga Y, Yoshida N Tags: Angle Orthod Source Type: research

Effects of severity and location of nonsyndromic hypodontia on craniofacial morphology.
Abstract Abstract Objective: To evaluate the effects of severity and location of nonsyndromic hypodontia on craniofacial morphology. Materials and Methods: A total of 154 patients with at least two or more congenitally missing teeth were selected and divided into two groups (group I [mild]: patients with two to five missing teeth; group II [severe]: patients with six or more missing teeth). The patients with hypodontia were divided into three groups according to the location of missing teeth in the dental arches (anterior, posterior, and both anterior and posterior) and location of missing teeth between the...
Source: The Angle Orthodontist - January 11, 2013 Category: Dentistry Authors: Gungor AY, Turkkahraman H Tags: Angle Orthod Source Type: research

Do mouthwashes with and without bleaching agents degrade the force of elastomeric chains?
Abstract Abstract Objective: To evaluate, in vitro, the effect of mouthwashes with and without bleaching agents on the force of elastomeric chains. Materials and Methods: A total of 108 elastomeric chain specimens was divided into six groups (n  =  18 in each group). Two test groups were exposed to two types of commonly used mouthwashes (Plax and Listerine), and two groups were exposed to mouthwashes containing bleaching agent (Plax Whitening and Listerine Whitening). Immersion in the solutions was performed twice a day for 60 seconds. One group of control specimens remained immersed in artificial ...
Source: The Angle Orthodontist - January 11, 2013 Category: Dentistry Authors: Pithon MM, Rodrigues AC, Sousa EL, de Souza Santos LP, Dos Santos Soares N Tags: Angle Orthod Source Type: research

Camouflage treatment of skeletal Class III malocclusion with multiloop edgewise arch wire and modified Class III elastics by maxillary mini-implant anchorage.
Conclusions: The MEAW technique combined with modified Class III elastics by maxillary mini-implants can effectively tip the mandibular molars distally without any extrusion and tip the lower incisors lingually with extrusion to camouflage skeletal Class III malocclusions. Clockwise rotation of the mandible and further proclination of upper incisors can be avoided. The MEAW technique and modified Class III elastics provided an appropriate treatment strategy especially for patients with high angle and open bite tendency. PMID: 23311602 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - January 11, 2013 Category: Dentistry Authors: He S, Gao J, Wamalwa P, Wang Y, Zou S, Chen S Tags: Angle Orthod Source Type: research

Effect of premolar extraction on mandibular third molar impaction in young adults.
Conclusions: When the inclination of the third molar is inconvenient, the tooth may remain impacted even if there is enough retromolar space. PMID: 23311603 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - January 11, 2013 Category: Dentistry Authors: Türköz C, Ulusoy C Tags: Angle Orthod Source Type: research

In vivo effects of two acidic soft drinks on shear bond strength of metal orthodontic brackets with and without resin infiltration treatment.
Conclusion: Pretreatment with the infiltrating resin has proved to result in a significant improvement in shear bond strength, regardless of the type of soft drink consumed. PMID: 23311604 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - January 11, 2013 Category: Dentistry Authors: Hammad SM, Enan ET Tags: Angle Orthod Source Type: research

Three-dimensional changes of the hyoid bone and airway volumes related to its relationship with horizontal anatomic planes after bimaxillary surgery in skeletal Class III patients.
Abstract Abstract Objective: To evaluate longitudinal changes of the hyoid bone position and pharyngeal airway space after bimaxillary surgery in mandibular prognathism patients. Materials and Methods: Cone-beam computed tomography scans were taken for 25 mandibular prognathism patients before surgery (T0), 2 months after surgery (T1), and 6 months after surgery (T2). The positional displacement of the hyoid bone was assessed using the coordinates at T0, T1, and T2. Additionally, the volume of each subject's pharyngeal airway was measured. Results: The mean amount of posterior maxilla impactio...
Source: The Angle Orthodontist - January 11, 2013 Category: Dentistry Authors: Kim MA, Kim BR, Choi JY, Youn JK, Kim YJ, Park YH Tags: Angle Orthod Source Type: research