Effects of first- and second-order gable bends on the orthodontic load systems produced by T-loop archwires.
Conclusion: Gable bends alter the orthodontic load systems; however, the three-dimensional interactions produce complex and unpredictable tradeoffs. PMID: 23987243 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 29, 2013 Category: Dentistry Authors: Katona TR, Isikbay SC, Chen J Tags: Angle Orthod Source Type: research

Localization of ODAM, PCNA, and CK14 in regenerating junctional epithelium during orthodontic tooth movement in rats.
Conclusions: Damaged JE might recover rapidly during orthodontic tooth movement because basal cells of the remaining JE, which show higher proliferation activity, are involved in JE regeneration. Reduced ODAM expression during proliferation of JE cells may increase again after JE regeneration is complete. Therefore, ODAM may be associated with the normal function of JE. PMID: 23984990 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 28, 2013 Category: Dentistry Authors: Jue SS, Kim JY, Na SH, Jeon KD, Bang HJ, Park JH, Shin JW Tags: Angle Orthod Source Type: research

Esthetic comparison of white-spot lesion treatment modalities using spectrometry and fluorescence.
Abstract Abstract Objective: To compare the esthetic improvements of white-spot lesions (WSLs) treated by fluoride, casein phosphopeptide amorphous calcium phosphate (CPP-ACP), or resin infiltration. Materials and Methods: WSLs were created on human enamel and randomly assigned to four groups: NaF (500 ppm), CPP-ACP, resin infiltration (Icon), or distilled deionized water (DDW; control group). The color change (ΔE) of each specimen was measured with a Crystaleye spectrophotometer, and fluorescence loss (ΔQ) was measured by quantitative light-induced fluorescence (QLF), at different time points aft...
Source: The Angle Orthodontist - August 28, 2013 Category: Dentistry Authors: Yuan H, Li J, Chen L, Cheng L, Cannon RD, Mei L Tags: Angle Orthod Source Type: research

A qualitative analysis of orthodontic-related posts on Twitter.
Conclusion: This is the first study to qualitatively analyze orthodontic-related posts in the social media era. Our findings suggest that orthodontic patients use social media sites such as Twitter to convey positive and negative feelings about braces. PMID: 23984992 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 28, 2013 Category: Dentistry Authors: Rachel Henzell M, Margaret Knight A, Morgaine KC, S Antoun J, Farella M Tags: Angle Orthod Source Type: research

Evaluation of mandibular volume using cone-beam computed tomography and correlation with cephalometric values.
Abstract Abstract Objective: To investigate the association between maxillofacial morphology and mandibular bone volume in patients with skeletal malocclusion. Materials and Methods: Subjects were 118 adult Japanese (58 males and 60 females). Skeletal malocclusion was classified, based on cephalometric analysis, into skeletal Classes I (-1° ≤ ANB
Source: The Angle Orthodontist - August 28, 2013 Category: Dentistry Authors: Katayama K, Yamaguchi T, Sugiura M, Haga S, Maki K Tags: Angle Orthod Source Type: research

The inclination of mandibular incisors revisited.
Conclusion: Lower incisor inclination is linked to the subject's sex, age, and skeletal pattern. It is not associated with symphyseal dimensions, except symphyseal depth. Factors related to natural inclination of lower incisors should be respected when establishing a treatment plan. PMID: 23985035 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 28, 2013 Category: Dentistry Authors: Gütermann C, Peltomäki T, Markic G, Hänggi M, Schätzle M, Signorelli L, Patcas R Tags: Angle Orthod Source Type: research

Dental malocclusion is not related to temporomandibular joint clicking: a logistic regression analysis in a patient population.
Conclusions: Findings from the present investigation suggested that in a population of TMD patients, the contribution of dental malocclusion features to predict TMJ click sounds is minimal with no clinical relevance. PMID: 23957663 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 19, 2013 Category: Dentistry Authors: Manfredini D, Perinetti G, Guarda-Nardini L Tags: Angle Orthod Source Type: research

Accuracy of laser-scanned models compared to plaster models and cone-beam computed tomography.
Conclusions: In conclusion, plaster models, CBCT models, and laser-scanned models are three different diagnostic records, each with its own advantages and disadvantages. The present results showed that the laser-scanned models are highly accurate to plaster models and CBCT scans. This gives general clinicians an alternative to take into consideration the advantages of laser-scanned models over plaster models and CBCT reconstructions. PMID: 23957664 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 19, 2013 Category: Dentistry Authors: Kim J, Heo G, Lagravère MO Tags: Angle Orthod Source Type: research

Photos vs silhouettes for evaluation of profile esthetics between white and black evaluators.
Conclusions: The esthetic attractiveness of the facial profiles of black subjects in photos and silhouettes was evaluated in a similar manner among black and white evaluators. Among both black and white evaluators, the greatest preference was for the slightly concave profile, which was within the limit considered standard. PMID: 23957665 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 19, 2013 Category: Dentistry Authors: Pithon MM, Silva IS, Almeida IO, Nery MS, de Souza ML, Barbosa G, Dos Santos AF, da Silva Coqueiro R Tags: Angle Orthod Source Type: research

Antibacterial and mechanical properties of propolis added to glass ionomer cement.
Conclusions: The addition of EEP may increase antibacterial properties without negatively modifying the mechanical properties of conventional GIC. PMID: 23944222 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 14, 2013 Category: Dentistry Authors: Hatunoğlu E, Oztürk F, Bilenler T, Aksakallı S, Simşek N Tags: Angle Orthod Source Type: research

Effect of post-orthognathic surgery condylar axis changes on condylar morphology as determined by 3-dimensional surface reconstruction.
Abstract Objective: To evaluate the effect of postoperative condylar axis changes on mandibular condylar remodeling by comparing the condylar head in three-dimensional (3D) surface reconstructions before and after surgery in skeletal Class III deformities (one-jaw [mandibular setback] or two-jaw surgery), and also to determine the relationship between condylar inward rotation and condylar surface remodeling after orthognathic surgery. Materials and Methods: A retrospective analysis was conducted of 30 patients with skeletal Class III deformities who had received orthognathic surgery. Group 1 underwent one-jaw surg...
Source: The Angle Orthodontist - August 14, 2013 Category: Dentistry Authors: An SB, Park SB, Kim YI, Son WS Tags: Angle Orthod Source Type: research

Factors affecting orthodontists' management of the retention phase.
Abstract Objective: To test the null hypothesis that orthodontist characteristics and factors related to retainer choice do not influence the management of the retention phase with regard to frequency and duration of follow-up care provided. Materials and Methods: Orthodontists (n  =  1000) were randomly selected to participate in an online survey divided into three categories: background, retainer choice, and time management. Results: Of the 1000 selected participants, 894 responded. When deciding the type of retainer to use, the following were considered most frequently: pretreatment malocclusion (91%), pati...
Source: The Angle Orthodontist - August 14, 2013 Category: Dentistry Authors: Bibona K, Shroff B, Best AM, Lindauer SJ Tags: Angle Orthod Source Type: research

Effect of cyclical forces on the periodontal ligament and alveolar bone remodeling during orthodontic tooth movement.
Conclusions: Tooth movement was significantly inhibited by application of cyclical forces. PMID: 23937517 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 12, 2013 Category: Dentistry Authors: Kalajzic Z, Peluso EB, Utreja A, Dyment N, Nihara J, Xu M, Chen J, Uribe F, Wadhwa S Tags: Angle Orthod Source Type: research

Smile esthetics from odontology students' perspectives.
Conclusions: There are no statistically significant differences between the results of students in different study years or between genders. The circumstance of having undergone prior orthodontic treatment is not a determining factor in the ability to perceive such anomalies. PMID: 23924403 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 7, 2013 Category: Dentistry Authors: España P, Tarazona B, Paredes V Tags: Angle Orthod Source Type: research

Influence of cone-beam computed tomography image artifacts on the determination of dental arch measurements.
Conclusion: CBCT provided the same accuracy as DPM in the measurement of the dental arches, and was negatively influenced by the presence of image artifacts. PMID: 23924404 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 7, 2013 Category: Dentistry Authors: Gamba TO, Oliveira ML, Flores IL, Cruz AD, Almeida SM, Haiter-Neto F, Lopes SL Tags: Angle Orthod Source Type: research

A better statistical method of predicting postsurgery soft tissue response in Class II patients.
Conclusion: The multivariate PLS method was more satisfactory than the OLS method in accurately predicting the soft tissue profile change after surgical correction of severe Class II malocclusions. PMID: 23914820 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 5, 2013 Category: Dentistry Authors: Lee HJ, Suh HY, Lee YS, Lee SJ, Donatelli RE, Dolce C, Wheeler TT Tags: Angle Orthod Source Type: research

Comparison of White and Chinese perception of esthetic Chinese lip position.
Conclusions: The ethnicity of the judges is a significant factor influencing the perception of esthetic lip position. The Chinese judges prefer a more retrusive profile and are more likely to rate a protrusive profile as unacceptable, compared with the White judges. PMID: 23914821 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 5, 2013 Category: Dentistry Authors: Chong HT, Thea KW, Descallar J, Chen Y, Dalci O, Wong R, Darendeliler MA Tags: Angle Orthod Source Type: research

Mandibular symphysis morphology and dimensions in different anteroposterior jaw relationships.
Abstract Objective: To assess the morphology and dimensions of mandibular symphysis (MS) in different anteroposterior jaw relationships and to investigate whether craniofacial parameters have any correlation with its shape and/or dimensions. Materials and Methods: Lateral cephalograms of subjects with Class I, Class II, and Class III skeletal relationships were traced. Several craniofacial and MS parameters were measured. MS parameters were compared between the three groups using analysis of variance and were correlated with the craniofacial parameters using the Pearson correlation coefficient. Results: Larger ang...
Source: The Angle Orthodontist - August 5, 2013 Category: Dentistry Authors: Al-Khateeb SN, Al Maaitah EF, Abu Alhaija ES, Badran SA Tags: Angle Orthod Source Type: research

Use of shape correspondence analysis to quantify skeletal changes associated with bone-anchored Class III correction.
Conclusion: This treatment approach induces favorable control of the mandibular growth pattern and can be used to treat patients with components of mandibular prognathism. PMID: 23886012 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 25, 2013 Category: Dentistry Authors: Nguyen T, Cevidanes L, Paniagua B, Zhu H, Koerich L, De Clerck H Tags: Angle Orthod Source Type: research

Mini-implant stability at the initial healing period.
Conclusions: Mini-implant stability is subject to changes during the healing process. During weeks 3 and 4, a significant decrease of the stability was observed. After 4 weeks, the stability did not change significantly. PMID: 23883287 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 24, 2013 Category: Dentistry Authors: Nienkemper M, Wilmes B, Pauls A, Drescher D Tags: Angle Orthod Source Type: research

Bone tissue amount related to upper incisors inclination.
-Corotti KM Abstract Abstract Objective: To evaluate the amount of buccal and lingual supporting bone tissue of 60 upper central incisors and the relationship with their inclination. Materials and Methods: Thirty healthy adult patients with no previous orthodontic treatment were evaluated using cone-beam computed tomography. Cross-sectional views were analyzed to check the amount of the bone tissue on the cervical (cervical buccal thickness/CBT; lingual/CLT), middle (middle buccal thickness/MBT; lingual/MLT), and apical regions (apical buccal thickness/ABT; lingual/ALT). The Pearson correlation, linear regression,...
Source: The Angle Orthodontist - July 24, 2013 Category: Dentistry Authors: Nahás-Scocate AC, de Siqueira Brandão A, Patel MP, Lipiec-Ximenez ME, Chilvarquer I, do Valle-Corotti KM Tags: Angle Orthod Source Type: research

Dental anomaly pattern (DAP).
Abstract Abstract Objective: To test the null hypotheses that children with unilateral agenesis of the mandibular second premolar (MnP2) do not show (1) greater distal angulation of the unerupted antimere and (2) delayed tooth formation compared with children without agenesis. Materials and Methods: Panoramic radiographs of 38 patients with unilateral aplasia of MnP2 were retrospectively examined and compared to a non-agenesic control group of 82 patients. Ages ranged from 8 to 15 years. Contralateral mandibular deciduous second molars were present for all participants. Each unerupted MnP2 was traced, and its...
Source: The Angle Orthodontist - July 24, 2013 Category: Dentistry Authors: Navarro J, Cavaller M, Luque E, Tobella ML, Rivera A Tags: Angle Orthod Source Type: research

Three-dimensional evaluation of upper airway following rapid maxillary expansion.
Conclusions: Rapid maxillary expansion creates a significant increase in nasal passage airway volume but no significant change in the oropharyngeal airway volume. PMID: 23865825 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 18, 2013 Category: Dentistry Authors: El H, Palomo JM Tags: Angle Orthod Source Type: research

Effect of applied moment on resistance to sliding among esthetic self-ligating brackets.
Abstract Abstract Objective: To determine the effect of mode of ligation and bracket material on resistance to sliding (RS) by comparing various esthetic brackets of conventionally ligated and self-ligating (SL) designs under an increasing applied moment in the second-order dimension. Materials and Methods: Eight different commercially available esthetic brackets of SL and conventional elastomeric-ligated (CL) designs were mounted on a testing apparatus to simulate canine retraction using sliding mechanics and the application of a moment on 0.019″×0.025″ stainless steel archwire. The samples exam...
Source: The Angle Orthodontist - July 16, 2013 Category: Dentistry Authors: Pliska BT, Fuchs RW, Beyer JP, Larson BE Tags: Angle Orthod Source Type: research

Periodontal status of ectopic canines after orthodontic treatment.
Conclusion: All ectopic canines had increased plaque and gingival bleeding index, greater pocket depths, reduced attached gingival width, higher gingival levels, increased crown lengths, higher electric pulp testing scores, and reduced bone levels compared to their contralaterals. PMID: 23841541 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 11, 2013 Category: Dentistry Authors: Evren AD, Nevzatoğlu S, Arun T, Acar A Tags: Angle Orthod Source Type: research

Maxillary canine impaction in orthodontic patients with and without agenesis.
Abstract Abstract Objective: To assess potential associations between maxillary canine impaction (MCI) and agenesis status as well as between MCI and gender. Materials and Methods: The records of 182 orthodontic patients with agenesis (excluding the third molars) and 630 orthodontic patients without agenesis were examined. Diagnosis of MCI was based on pretreatment panoramic radiographs. Maxillary canines that had not erupted as a result of physical barrier or deflection in the eruption path at the dental age of at least 12 years were considered impacted. Logistic regression analysis was used to test for the ...
Source: The Angle Orthodontist - July 10, 2013 Category: Dentistry Authors: Lempesi E, Karamolegkou M, Pandis N, Mavragani M Tags: Angle Orthod Source Type: research

Effect of adhesion boosters on indirect bracket bonding.
ni SM Abstract Objective: To determine the influence of two adhesion boosters on shear bond strength and on the bond failure location of indirectly bonded brackets. Materials and Methods: Sixty bovine incisors were randomly divided into three groups (n  =  20), and their buccal faces were etched using 37% phosphoric acid. In group 1 (control), brackets were indirectly bonded using only Sondhi adhesive. In groups 2 and 3, the adhesion boosters Enhance Adhesion Booster and Assure Universal Bonding Resin, respectively, were applied before bonding with Sondhi. Maximum bond strength was measured with a universal te...
Source: The Angle Orthodontist - July 8, 2013 Category: Dentistry Authors: Kanashiro LK, Robles-Ruíz JJ, Ciamponi AL, Medeiros IS, Dominguez GC, de Fantini SM Tags: Angle Orthod Source Type: research

Three-dimensional changes of the naso-maxillary complex following rapid maxillary expansion.
Abstract Objective: To assess the volumetric changes and the maxillary response of the naso-maxillary complex (NMC) following rapid maxillary expansion (RME). Materials and Methods: Thirty consecutive patients (14 males and 16 females) with a mean age at first observation of 9.5 ± 1.8 years for males and of 11.8 ± 1.7 years for females, presenting a posterior unilateral or bilateral crossbite and requiring RME, were selected for the study. Each patient underwent expansion to correct the transverse occlusal relationships. Computed tomography scans were taken before RME (T1) and at the end of...
Source: The Angle Orthodontist - July 8, 2013 Category: Dentistry Authors: Bouserhal J, Bassil-Nassif N, Tauk A, Will L, Limme M Tags: Angle Orthod Source Type: research

Longitudinal study of cephalometric soft tissue profile traits between the ages of 6 and 18 years.
Conclusion: Current findings identify areas of growth and change in individuals with Class I skeletal and dental relationships with ideal overjet and overbite and should be considered during treatment planning of orthodontic and orthognathic patients. PMID: 23834271 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 8, 2013 Category: Dentistry Authors: Bergman RT, Waschak J, Borzabadi-Farahani A, Murphy NC Tags: Angle Orthod Source Type: research

Human tooth movement by continuous high and low stresses.
Abstract Objective: To compare three-dimensional tooth movements resulting from relatively higher and lower stresses in a split-mouth design. Materials and Methods: Eight volunteers whose maxillary first premolars were removed for orthodontic treatment participated. Each subject's maxillary canines were retracted by randomly assigned constant stresses of 78 kPa and 4 kPa via segmental mechanics. Dental casts depicting 8-10 visits per subject over 84 days and a three-axis microscope were used to measure movements serially. Descriptive statistics and mixed linear modeling were applied for data analyse...
Source: The Angle Orthodontist - July 8, 2013 Category: Dentistry Authors: Deforest WN, Hentscher-Johnson JK, Liu Y, Liu H, Nickel JC, Iwasaki LR Tags: Angle Orthod Source Type: research

Objective assessment of patient compliance with removable orthodontic appliances A cross-sectional cohort study.
Conclusions: Despite the fact that patients and parents were informed about wear time recording, compliance was insufficient with regard to functional treatment (14 h/d prescription), while it was sufficient for retention purposes (8 h/d prescription). Objective measures are necessary to assess compliance with removable orthodontic appliances since patient compliance is a highly variable issue. PMID: 23834273 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 8, 2013 Category: Dentistry Authors: Tsomos G, Ludwig B, Grossen J, Pazera P, Gkantidis N Tags: Angle Orthod Source Type: research

Corticotomy-assisted molar protraction with the aid of temporary anchorage device.
Abstract Abstract This case report describes the interdisciplinary management of a 58-year-old woman who was missing lower first molars and supraerupted maxillary first molars. The treatment plan included intrusion of the upper first molars and corticotomy-assisted mandibular second molar protraction with the aid of temporary anchorage devices. Miniscrews were effective in intrusion of the maxillary first molars and protraction of the lower second molars. Although good functional outcome was achieved in 41 months, the corticotomy-assisted procedure did not significantly reduce the treatment time. PMID: 2...
Source: The Angle Orthodontist - July 8, 2013 Category: Dentistry Authors: Uribe F, Janakiraman N, Fattal AN, Schincaglia GP, Nanda R Tags: Angle Orthod Source Type: research

Clinical bond failure rates of adhesive precoated self-ligating brackets using a self-etching primer.
Abstract Abstract Objective: To comparatively assess the failure rate of adhesive precoated (APC) self-ligating metal brackets bonded with two different enamel surface preparation techniques: self-etching primer (SEP) and conventional two-step etch and primer method (CM). Materials and Methods: Fifty-seven patients with complete permanent dentition were included in this study. A total of 1140 APC self-ligating brackets (3M Unitek, Monrovia, Calif) were bonded using a split-mouth design. For each patient, SEP (Transbond Plus SEP, 3M Unitek) and CM (37% phosphoric acid) were used in alternate quadrants. All brackets...
Source: The Angle Orthodontist - July 2, 2013 Category: Dentistry Authors: Ozer M, Bayram M, Dincyurek C, Tokalak F Tags: Angle Orthod Source Type: research

Academic orthodontic opportunities.
Authors: PMID: 23802179 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - June 30, 2013 Category: Dentistry Tags: Angle Orthod Source Type: research

Who pays for orthodontic education?
PMID: 23786628 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - June 26, 2013 Category: Dentistry Authors: Lindauer SJ Tags: Angle Orthod Source Type: research

Efficacy of three hygienic protocols in reducing biofilm adherence to removable thermoplastic appliance.
Abstract Abstract Objectives: To examine the ability of a removable thermoplastic appliance (RTA) to adsorb hygienic solutions and inhibit bacterial growth and to examine the efficacy of three hygiene protocols in reducing bacterial biofilm adherence to RTA. Materials and Methods: Solution adsorption and bacterial growth inhibition were examined in vitro using paper vs RTA discs. Subsequently, 11 patients treated with RTA (mean age, 29.1 ± 4.7 years) were assigned into a sequence of three hygiene protocols: regular RTA brushing (baseline), immersion RTAs in chlorhexidine mouthwash (CHX), and using a vi...
Source: The Angle Orthodontist - June 20, 2013 Category: Dentistry Authors: Shpack N, Greenstein RB, Gazit D, Sarig R, Vardimon AD Tags: Angle Orthod Source Type: research

Skeletal and dental effects of tooth-borne versus hybrid devices for mandibular symphyseal distraction osteogenesis.
Abstract Abstract Objective: To evaluate and compare, retrospectively, the skeletal and dental effects of mandibular symphyseal distraction osteogenesis (MSDO) achieved through the use of tooth-borne versus hybrid distractors. Materials and Methods: Pretreatment (T1), predistraction (T2), postdistraction (T3), and posttreatment (T4) orthodontic records were collected and analyzed for 47 patients (20 tooth-borne, 27 hybrid). At each time point, records included intraoral photographs, study models, postero-anterior cephalometric radiographs, and lateral cephalometric radiographs. Submental vertex radiographs were ta...
Source: The Angle Orthodontist - June 20, 2013 Category: Dentistry Authors: Niculescu JA, King JW, Lindauer SJ Tags: Angle Orthod Source Type: research

Effect of interceptive extraction of deciduous canine on palatally displaced maxillary canine: A prospective randomized controlled study.
Conclusions: The extraction of the deciduous canine is an effective measure in PDC cases, but it must be done in younger patients in combination with early diagnosis, at the age of 10-11 years. Maintenance of the perimeter of the upper arch is an important step during the observation period, and a palatal arch as a space-holding device is recommended. PMID: 23777411 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - June 18, 2013 Category: Dentistry Authors: Bazargani F, Magnuson A, Lennartsson B Tags: Angle Orthod Source Type: research

Treatment effects of the Forsus Fatigue Resistant Device used with miniscrew anchorage.
Conclusion: Overjet and molar correction was totally dentoalveolar. Unfavorable labial tipping of mandibular incisors was effectively minimized with the usage of miniscrews. PMID: 23772682 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - June 17, 2013 Category: Dentistry Authors: Aslan BI, Kucukkaraca E, Turkoz C, Dincer M Tags: Angle Orthod Source Type: research

Surface roughness of three types of modern plastic bracket slot floors and frictional resistance.
Abstract Abstract Objective: To quantitatively analyze the surface roughness of the slot floors of three types of modern plastic brackets and to measure static frictional force during sliding mechanics in vitro. Materials and Methods: Control groups comprised stainless steel brackets and monocrystalline ceramic brackets. Test groups comprised three types of 0.022-in slot, Roth prescription, plastic, maxillary right central incisor brackets. Test groups included glass fiber-reinforced polycarbonate, filler-reinforced polycarbonate, and hybrid polymer with inserted metal slot brackets. The static frictional resistan...
Source: The Angle Orthodontist - June 14, 2013 Category: Dentistry Authors: Choi SH, Kang DY, Hwang CJ Tags: Angle Orthod Source Type: research

Evaluation of the use of digital study models in postgraduate orthodontic programs in the United States and Canada.
Conclusions: Based on our study, 35% of accredited orthodontic postgraduate programs in the United States and Canada are using digital study models in most cases treated in their programs, and the trend is for increased digital model use in the future. PMID: 23742197 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - June 6, 2013 Category: Dentistry Authors: Shastry S, Park JH Tags: Angle Orthod Source Type: research

Effect of cephalograms on decisions for early orthodontic treatment.
Conclusion: It follows that cephalograms did not influence therapeutic decisions for early orthodontic treatment and should not be routinely used in very young patients. PMID: 23724806 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 31, 2013 Category: Dentistry Authors: Ritschel R, Bechtold TE, Berneburg M Tags: Angle Orthod Source Type: research

Associations between the risk of tooth agenesis and single-nucleotide polymorphisms of MSX1 and PAX9 genes in nonsyndromic cleft patients.
Abstract Objective: To investigate the association between the risk of tooth agenesis and single-nucleotide polymorphisms (SNPs) of MSX1 and PAX9 genes in nonsyndromic cleft patients. Materials and Methods: The subjects were 126 Korean nonsyndromic cleft patients. Tooth agenesis type (TAT) was classified as none (0); cleft area (1); cleft area + other area (2); and other area (3) based on agenesis of the maxillary lateral incisor (MXLI) and another tooth within or outside the cleft area. TAT was further grouped into two subcategories (0 and 1) and four subcategories (0, 1, 2, and 3). Three SNPs of MSX1 and 10 SNPs...
Source: The Angle Orthodontist - May 29, 2013 Category: Dentistry Authors: Seo YJ, Park JW, Kim YH, Baek SH Tags: Angle Orthod Source Type: research

Orthodontic pain-an interaction between age and sex in early and middle adolescence.
Conclusions: Age and sex interaction has significant effect on orthodontic pain during adolescence, and 14- to 17-year-old girls experienced maximum pain. PMID: 23705940 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 24, 2013 Category: Dentistry Authors: Sandhu SS, Sandhu J Tags: Angle Orthod Source Type: research

Differences in the gingival crevicular fluid composition between adults and adolescents undergoing orthodontic treatment.
Conclusion: This study demonstrates age trends in the GCF levels of IL-1, IL-1RA, RANKL, and OPG that may be used to track differences in tissue response between adults and adolescents undergoing orthodontic treatment. PMID: 23687969 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 21, 2013 Category: Dentistry Authors: Rody WJ, Wijegunasinghe M, Wiltshire WA, Dufault B Tags: Angle Orthod Source Type: research

Does proclination of maxillary incisors really affect the sagittal position of point A?
Conclusions: Proclination of maxillary incisors accompanied by backward movement of incisor root apex caused posterior movement of point A. However, this posterior movement does not significantly affect the SNA angle. PMID: 23678998 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 16, 2013 Category: Dentistry Authors: Bicakci AA, Cankaya OS, Mertoglu S, Yilmaz N, Altan BK Tags: Angle Orthod Source Type: research

Torque efficiency of different archwires in 0.018- and 0.022-inch conventional brackets.
Conclusion: The 0.017 × 0.025-inch stainless steel and β-Ti archwires in the 0.018-inch slot generated higher moments than the 0.019 × 0.025-inch archwires because of lower torque play. This difference is exaggerated in steel archwires, in comparison with the β-Ti, because of differences in stiffness. The differences of maximum moments between the archwires of the same cross-section but different alloys were statistically significant at both slot dimensions. PMID: 23678999 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - May 16, 2013 Category: Dentistry Authors: Sifakakis I, Pandis N, Makou M, Eliades T, Katsaros C, Bourauel C Tags: Angle Orthod Source Type: research

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