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[PMID]: 29521769
[Au] Autor:Sensoy AT; Kaymaz I; Ertas Ü; Kiki A
[Ad] Address:Department of Mechanical Engineering, Engineering Faculty, Bayburt University, Bayburt.
[Ti] Title:Determining the Patient-Specific Optimum Osteotomy Line for Severe Mandibular Retrognathia Patients.
[So] Source:J Craniofac Surg;, 2018 Mar 08.
[Is] ISSN:1536-3732
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:PURPOSE: The purpose of this study is to suggest a patient-specific osteotomy line to optimize the distractor position and thus to minimize the disadvantages of conventional mandibular distraction osteogenesis (MDO) protocols. In addition, this study also aims to compare the conventional MDO protocols with the new MDO protocol proposed in this study in terms of both orthodontic outcomes and mechanical effects of osteotomy level on callus stabilization by means of the finite element method. METHODS: A preoperative patient-specific 3-dimensional bone model was created and segmented by using computed tomography images of an individual patient. Virtual orthodontic set-up was applied to the segmented model prior to the virtual surgery. In order to compare the proposed osteotomy line with the conventional lines used in clinical applications, virtual surgery simulations were performed and callus tissues were modelled for each scenario. The comparison of the success of each osteotomy line was carried out based on the occlusion of the teeth. RESULTS: The osteotomy line determined using the method proposed in this study has resulted in far less malocclusion than the conventional method. Namely, any angular deviation from the optimum osteotomy line determined in this study might result in deep-bite or open-bite. On the other hand, the finite element analysis results have indicated that this deviation also negatively affects the callus stability. CONCLUSION: In order to achieve a better MDO treatment in terms of occlusion of the teeth and the callus stability, the location of the osteotomy line and the distractor position can be computationally determined. The results suggest that MDO protocol developed in this study might be used in clinic to achieve a better outcome from the MDO treatment.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[St] Status:Publisher
[do] DOI:10.1097/SCS.0000000000004470

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Tanaka, Orlando Motohiro
Camargo, Elisa Souza

[PMID]: 29364826
[Au] Autor:Graciano Parra AX; Marin GC; Filho OG; Tanaka OM; Camargo ES
[Ad] Address:Graduate Program in Dentistry, Orthodontics, School of Life Sciences, Pontifica Universidade Católica do Paraná, Prado Velho, Curitiba, Paraná, Brazil.
[Ti] Title:Two-phase treatment of anterior open bite.
[So] Source:J Clin Orthod;51(12):801-808, 2017 Dec.
[Is] ISSN:0022-3875
[Cp] Country of publication:United States
[La] Language:eng
[Mh] MeSH terms primary: Open Bite/therapy
[Mh] MeSH terms secundary: Child, Preschool
Extraoral Traction Appliances
Female
Humans
Palatal Expansion Technique
Tooth Extraction
[Pt] Publication type:CASE REPORTS; JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180308
[Lr] Last revision date:180308
[Js] Journal subset:D
[Da] Date of entry for processing:180125
[St] Status:MEDLINE

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[PMID]: 29501119
[Au] Autor:Jiang C; Liu Y; Cheng Q; He W; Fang S; Lan T; Wang J
[Ad] Address:State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China; Department of Orthodontics, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
[Ti] Title:Chin remodeling in a patient with bimaxillary protrusion and open bite by using mini-implants for temporary anchorage.
[So] Source:Am J Orthod Dentofacial Orthop;153(3):436-444, 2018 Mar.
[Is] ISSN:1097-6752
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:Patients with bimaxillary protrusion may have an unattractive profile with a retruded chin contour. Correction of the severely protrusive anterior alveolar bone and teeth combined with a moderate open bite without orthognathic surgery can be challenging. This case report describes the orthodontic treatment of a woman with severe bimaxillary protrusion and a moderate open bite. Excellent chin morphology and facial appearance were obtained with the extraction of 4 first premolars and 4 third molars, and total distalization of both arches with 4 mini-implants, one in each quadrant between the second premolar and the first molar. The total treatment time was 30 months.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180304
[Lr] Last revision date:180304
[St] Status:In-Process

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[PMID]: 29330953
[Au] Autor:Curtis AA; Santana SE
[Ad] Address:Department of Biology and Burke Museum of Natural History and Culture, University of Washington, Seattle, Washington.
[Ti] Title:Jaw-Dropping: Functional Variation in the Digastric Muscle in Bats.
[So] Source:Anat Rec (Hoboken);301(2):279-290, 2018 02.
[Is] ISSN:1932-8494
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:Diet and feeding behavior in mammals is strongly linked to the morphology of their feeding apparatus. Cranio-muscular morphology determines how wide, forcefully, and quickly the jaw can be opened or closed, which limits the size and material properties of the foods that a mammal can eat. Most studies of feeding performance in mammals have focused on skull form and jaw muscles involved in generating bite force, but few explore how jaw abduction is related to feeding performance. In this study, we explored how the morphology of the digastric muscle, the primary jaw abducting muscle in mammals, and its jaw lever mechanics are related to diet in morphologically diverse noctilionoid bats. Results showed that insectivorous bats have strong digastric muscles associated with proportionally long jaws, which suggests these species can open their jaws quickly and powerfully during prey capture and chewing. Short snouted frugivorous bats exhibit traits that would enable them to open their jaws proportionally wider to accommodate the large fruits that they commonly feed on. Our results support the hypothesis that digastric muscle and jaw morphology are correlated with diet in bats, and that our results may also apply to other groups of mammals. Anat Rec, 301:279-290, 2018. © 2018 Wiley Periodicals, Inc.
[Pt] Publication type:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Em] Entry month:1801
[Cu] Class update date: 180302
[Lr] Last revision date:180302
[St] Status:In-Process
[do] DOI:10.1002/ar.23720

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[PMID]: 29476667
[Au] Autor:Alonso-Rodriguez E; Gómez E; Martín M; Muñoz JM; Hernández-Godoy J; Burgueño M
[Ad] Address:Paseo de la Castellana, 261, 28046 Madrid, Spain, Department of Oral and Maxillofacial Surgery, stfania@hotmail.com.
[Ti] Title:Beckwith-Wiedemann Syndrome: Open bite evolution after tongue reduction.
[So] Source:Med Oral Patol Oral Cir Bucal;23(2):e225-e229, 2018 Mar 01.
[Is] ISSN:1698-6946
[Cp] Country of publication:Spain
[La] Language:eng
[Ab] Abstract:BACKGROUND: Macroglossia causes functional deficits such as airway obstruction, drooling, phonation difficulties, and leads to protrusion of dentoalveolar structures resulting in an anterior open bite and a prognathic mandibular appearance. Macroglossia is present in the majority of patients with Beckwith-Wiedemann syndrome (BWS) and surgical treatment may be indicated. MATERIAL AND METHODS: A retrospective review was conducted including BWS patients who underwent surgical tongue reduction between 2000 and 2015 at the Hospital Universitario La Paz, Madrid. RESULTS: Out of 16 patients with BWS, surgery was performed in 11 cases. Tongue protrusion with open bite was the main indication for surgical treatment. Reduction glossectomy was performed using the keyhole technique. We analysed the relationship between age at surgery and evolution of open bite. Complications were minimal and satisfactory outcomes were observed with a decrease in anterior open bite. CONCLUSIONS: In this study we have observed that surgical treatment in patients with BWS and open bite accompanied by macroglossia seems to provide positive results with a satisfactory outcome in dentoskeletal alterations.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180228
[Lr] Last revision date:180228
[St] Status:In-Process
[do] DOI:10.4317/medoral.21319

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[PMID]: 29478686
[Au] Autor:Flores-Mir C
[Ti] Title:Limited Evidence Suggests that a History of Suboptimal Breastfeeding May Increase the Risk of Developing Anterior Open Bite, Posterior Crossbite, and Class II Canine Relationship.
[So] Source:J Evid Based Dent Pract;18(1):79-81, 2018 Mar.
[Is] ISSN:1532-3390
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Malocclusion in young children. Does breast-feeding really reduce the risk? A systematic review and meta-analysis. Dogramaci EJ, Rossi-Fedele G, Dreyer CW. J Am Dent Assoc 2017; 148(8):566-74. SOURCE OF FUNDING: Australian Government Research Training Program Scholarship TYPE OF STUDY/DESIGN: Systematic review with meta-analysis of data.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180226
[Lr] Last revision date:180226
[St] Status:In-Data-Review

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[PMID]: 29360637
[Au] Autor:Park JH; Tai K; Ikeda M
[Ad] Address:Postgraduate Orthodontic Program, Arizona School of Dentistry and Oral Health, A.T. Still University, Mesa, AZ; Graduate School of Dentistry, Kyung Hee University, Seoul, Korea. jpark@atsu.edu.
[Ti] Title:Anterior open-bite correction with miniscrew anchorage and a combination of upper lingual and lower labial appliances.
[So] Source:J Clin Orthod;51(11):719-727, 2017 Nov.
[Is] ISSN:0022-3875
[Cp] Country of publication:United States
[La] Language:eng
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1801
[Cu] Class update date: 180226
[Lr] Last revision date:180226
[St] Status:In-Process

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[PMID]: 29390986
[Au] Autor:Gudipaneni RK; Aldahmeshi RF; Patil SR; Alam MK
[Ad] Address:Department of Pedodontics, College of Dentistry, Aljouf University, Sakaka, Kingdom of Saudi Arabia. dr.ravi.gudipaneni@jodent.org.
[Ti] Title:The prevalence of malocclusion and the need for orthodontic treatment among adolescents in the northern border region of Saudi Arabia: an epidemiological study.
[So] Source:BMC Oral Health;18(1):16, 2018 02 02.
[Is] ISSN:1472-6831
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:BACKGROUND: To assess the prevalence of malocclusion and orthodontic treatment need among adolescents using the dental health component (DHC) of the index of orthodontic treatment need (IOTN). METHODS: A descriptive cross-sectional study was conducted among 500 (mean age 16.25 ± 1.09) adolescents randomly selected from the northern border region of Saudi Arabia (KSA). The northern border region is sub-divided into three governorates: Ar'ar (186), Rafha (142) and Turayf (172). The data were recorded in questionnaires to assess the prevalence of malocclusion and estimate of DHC of the IOTN index. RESULTS: The most common malocclusions in order of prevalence were Angle's Class I (52.8%), Angle's Class II (31.8%), Angle's Class III (15.4%), crowding (47.2%), excessive overjet (> 2 mm) (22.2%), reduced overjet (< 1 mm) (11.4%), excessive overbite (> 2 mm) (23.4%), reduced overbite (< 1 mm) (12.2%), anterior crossbite (4.8%), posterior crossbite (9.4%) and open bite (4.6%). The most common facial profiles determined in the sagittal plane, were the straight facial profile (49.2%), convex (42.6%) and concave (8.2%). The prevalence of Grade 1 and 2 DHC was 49.4%, Grade 3 was 29.6%, Grade 4 and 5 was 21%. The grades of DHC of IOTN index were as follows: 48.73% of males and 50.22% of females showed grades 1 and 2. Grade 3 was observed in 30.32% of males and 28.69% of females. Grades 4 and 5 were recorded in 20.93% of males and 21.07% of females. CONCLUSIONS: The prevalence of malocclusion and orthodontic treatment need among the north border region of KSA is comparable with that of other regional studies.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180218
[Lr] Last revision date:180218
[St] Status:In-Process
[do] DOI:10.1186/s12903-018-0476-8

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[PMID]: 29301317
[Au] Autor:Seok H; Kim SG
[Ad] Address:Department of Oral and Maxillofacial Surgery, Chungbuk National University Hospital, Cheongju 28644, Korea. sok8585@hanmail.net.
[Ti] Title:Correction of Malocclusion by Botulinum Neurotoxin Injection into Masticatory Muscles.
[So] Source:Toxins (Basel);10(1), 2018 Jan 02.
[Is] ISSN:2072-6651
[Cp] Country of publication:Switzerland
[La] Language:eng
[Ab] Abstract:Botulinum toxin (BTX) is a neurotoxin, and its injection in masticatory muscles induces muscle weakness and paralysis. This paralytic effect of BTX induces growth retardation of the maxillofacial bones, changes in dental eruption and occlusion state, and facial asymmetry. Using masticatory muscle paralysis and its effect via BTX, BTX can be used for the correction of malocclusion after orthognathic surgery and mandible fracture. The paralysis of specific masticatory muscles by BTX injection reduces the tensional force to the mandible and prevents relapse and changes in dental occlusion. BTX injection in the anterior belly of digastric and mylohyoid muscle prevents the open-bite and deep bite of dental occlusion and contributes to mandible stability after orthognathic surgery. The effect of BTX injection in masticatory muscles for maxillofacial bone growth and dental occlusion is reviewed in this article. The clinical application of BTX is also discussed for the correction of dental malocclusion and suppression of post-operative relapse after mandibular surgery.
[Pt] Publication type:JOURNAL ARTICLE; REVIEW
[Em] Entry month:1801
[Cu] Class update date: 180207
[Lr] Last revision date:180207
[St] Status:In-Data-Review

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[PMID]: 29388328
[Au] Autor:Jabbour Z; Al-Khateeb A; Eimar H; Retrouvey JM; Glorieux FH; Rauch F; Tamimi F
[Ad] Address:Faculty of Dentistry, McGill University, Montreal, QC, Canada.
[Ti] Title:Genotype and malocclusion in patients with osteogenesis imperfecta.
[So] Source:Orthod Craniofac Res;, 2018 Feb 01.
[Is] ISSN:1601-6343
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:OBJECTS: To investigate the relationship between genotype and severity of malocclusion in osteogenesis imperfecta (OI). SETTING AND SAMPLE POPULATION: A total of 49 patients participated in this cross-sectional study (age range: 5-19 years; 28 females; diagnoses: OI type I, N = 7; OI type III, N = 11; OI type IV, N = 27; OI type V, N = 2; OI type VI, N = 2). MATERIALS AND METHODS: Sequence analysis of COL1A1/COL1A2 and other OI-related genes was compared to the Peer Assessment Rating (PAR), an index reflecting the severity of malocclusion. RESULTS: The mutation spectrum was as follows: COL1A1, N = 22; COL1A2, N = 22, IFITM5, N = 2; SERPINF1, N = 2; no mutation detected, N = 1). Compared to patients with COL1A1 mutations, patients with COL1A2 mutations had significantly higher scores for total PAR, anterior cross-bite, anterior open bite and anteroposterior buccal occlusion. Males with COL1A2 mutations had significantly higher total PAR scores than females (median 36 vs 30, P = .047, Mann-Whitney test). Exploratory correlation between age and buccal vertical occlusion was noted in patients with COL1A2 mutations (Spearman correlation: r = .46, P = .03, power = .50). Two patients with OI type V (caused by IFITM5 mutations) had total PAR scores of 44 and 21. Both patients scored high for "segment." Patients with OI type VI (due to SERPINF1 mutations) scored similar to OI type V for "centreline." Considerable difference was observed in the total PAR score between the 2 patients with OI type VI. They had total PAR of 43 and 2. CONCLUSION: Type of disease-causing mutation affects the severity of malocclusion in individuals with OI.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180201
[Lr] Last revision date:180201
[St] Status:Publisher
[do] DOI:10.1111/ocr.12218


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