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https://www.readbyqxmd.com/read/28546961/early-correction-of-unilateral-scissor-bite-using-transforce-appliance-and-modified-twin-block-appliance
#1
Harshal Chandorikar, Arun Nagrik, Wasundhara A Bhad, Santosh J Chavan, Umal H Doshi
Early treatment of scissor bite has been advocated mainly to prevent function jaw shift that can eventually lead to permanent skeletal asymmetry and temporomandibular joint pathosis. Although unilateral scissor bite is more common, most of the times, bilateral mandibular expansion is indicated. Lingual transforce appliance can be useful in such cases. This article presents a patient with unilateral scissor bite in mixed dentition with alveolar narrowing. Transforce appliance was used for scissor bite correction followed by modified twin block appliance for stabilization and settling of occlusion till the eruption of premolars...
April 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/28546959/an-evaluation-of-oral-health-related-quality-of-life-in-orthodontic-patients-treated-with-fixed-and-twin-blocks-appliances
#2
Emad Em Alzoubi, Racha Hariri, Kevin Mulligan, Nikolai Attard
OBJECTIVE: To study the impact of orthodontic treatment on the quality of life in two patient groups, one treated with the twin block appliance and the other with fixed appliances. MATERIALS AND METHODS: Ninety-eight patients, aged between 10 and 16 years, were recruited in the fixed (20 males and 29 females) or functional (29 males and 20 females) treatment groups. The oral health-related quality of life (OHRQoL) was measured before treatment and followed up at the end of the treatment...
April 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/28546958/effect-of-functional-appliances-on-the-airway-dimensions-in-patients-with-skeletal-class-ii-malocclusion-a-systematic-review
#3
Annapurna Kannan, Haritha Pottipalli Sathyanarayana, Sridevi Padmanabhan
OBJECTIVES: The aim of the present systematic review was to assess the effect of functional appliances on the airway dimensions in patients with skeletal Class II malocclusion. MATERIALS AND METHODS: Articles were identified through a literature survey carried out through the following databases: (1) PUBMED, (2) Google Scholar, (3) The Cochrane Library, (4) Embase, (5) Lilac, and (6) Web of Scholars. The systematic review analyzed 12 articles comprising removable functional appliances, 3 articles with fixed functional appliances, and 2 articles having both fixed and removable functional appliances...
April 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/28540090/orthodontic-intervention-to-impacted-and-transposed-lower-canines
#4
Nihat Kılıç, Hüsamettin Oktay
Impacted and transposed teeth cause serious difficulties in tooth eruption and movement as well as esthetic and functional outcomes. Proper treatment planning including good biomechanical control is essential in order to avoid side effects during traction and aligning of the impacted and/or transposed teeth. The purpose of the present study was to present a successfully treated female patient having transposed and impacted lower canines by means of a modified lingual arch and fixed orthodontic appliance. A female patient aged 13 years and 9 months presented to the orthodontic department with a chief compliant of bilateral spacing and missing teeth in mandibular dentition...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28509361/prevalence-of-dental-developmental-anomalies-of-permanent-teeth-in-children-and-their-influence-on-esthetics
#5
Anita Fekonja
OBJECTIVE: The aim of this study was to determine the prevalence of dental developmental anomalies in permanent teeth and their influence on esthetics. MATERIALS AND METHODS: The records of 473 subjects, which comprised of orthopantomograms, clinical examination, and anamnestic data, were explored for dental developmental anomalies. Subjects with dental anomalies completed the modified questionnaire. Data on reasons for seeking the treatment as well as factors affecting the patients' satisfaction were collected...
May 16, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28487778/cl-ii-malocclusion-treatment-using-the-modified-twin-block-appliance-coordinated-with-fixed-orthodontics-in-a-postmenarche-patient
#6
Amin Aminian, Shahriar Sarvareh Azimzadeh, Elina Rahmanian
Functional appliances have been used for treatment of Class II patients for a long time. The main objective of therapy with functional appliances is to induce supplementary lengthening of the mandible by stimulating increased growth at the condylar cartilage. The Twin Block appliance is one of the most commonly used functional appliances. The aim of this paper is to present a case report of mandibular deficiency treatment with Twin Block appliance in a female patient whose sexual maturation (one and a half years after menarche) and cervical vertebral maturation stage indicated the end of the growth peak...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28485615/changes-in-occlusal-function-after-extraction-of-premolars-2-year-follow-up
#7
Wookang Yoon, Soonshin Hwang, Chooryung Chung, Kyung-Ho Kim
OBJECTIVE: To determine the effects of extraction and the number of teeth extracted on changes in occlusal function by measuring occlusal contact area and force before and after orthodontic treatment with a fixed appliance. MATERIALS AND METHODS: Female patients treated with a fixed appliance were divided into nonextraction (n = 36), two maxillary premolar extraction (n = 31), and four premolar extraction (n = 18) groups. Bite pressure-sensitive films were used to analyze the occlusal contact area and force...
May 9, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28483230/changes-in-airway-dimensions-following-functional-appliances-in-growing-patients-with-skeletal-class-ii-malocclusion-a-systematic-review-and-meta-analysis
#8
REVIEW
MingLi Xiang, Bo Hu, Yang Liu, Jicheng Sun, Jinlin Song
OBJECTIVES: The purpose of the study was to evaluate the treatment effects of functional appliances (FAs) on upper airway dimensions in growing Class II patients with mandibular retrognathism. METHODS: Five databases and the references of identified articles were electronically searched for relevant studies that met our eligibility criteria. The quality of the included studies was assessed using the Newcastle-Ottawa Scale. The effects of FAs on airway dimensions were combined by meta-analysis using the RevMan and STATA software...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28476575/contribution-of-atypical-chemokine-receptor-2-ackr2-in-bone-remodeling
#9
Izabella Lucas de Abreu Lima, Janine Mayra da Silva, Letícia Fernanda Duffles Rodrigues, Davidson Frois Madureira, Angélica Cristina Fonseca, Gustavo Pompermaier Garlet, Mauro Martins Teixeira, Remo Castro Russo, Sandra Yasuyo Fukada, Tarcília Aparecida da Silva
INTRODUCTION: Bone remodeling is a tightly regulated process influenced by chemokines. ACKR2 is a decoy receptor for CC chemokines functioning as regulator of inflammatory response. In this study we investigated whether the absence of ACKR2 would affect bone phenotype and remodeling induced by mechanical loading. METHODS: An orthodontic appliance was placed between incisors and first molar of ACKR2 deficient (ACKR2(-/-)) and C57BL6/J (wild-type/WT) mice. Microtomography, histology and qPCR were performed to evaluate bone parameters, orthodontic tooth movement (OTM), bone cells counts and the expression of ACKR2, bone remodeling markers, CC chemokines and chemokines receptors...
May 3, 2017: Bone
https://www.readbyqxmd.com/read/28407779/histologic-effects-of-mandibular-protrusion-splints-in-antigen-induced-tmj-arthritis-in-rabbits
#10
Julia von Bremen, Kernt Köhler, Krystyna Siudak, Daniel Zahner, Sabine Ruf
BACKGROUND: Although it is common clinical practice to treat children with Juvenile Idiopathic Arthritis (JIA) with functional appliances, the scientific evidence for this is limited. The aim of this study was to study the histologic effects of mandibular protrusion splints in temporomandibular joint (TMJ) arthritis in rabbits. METHODS: Twenty-eight ten-week old New Zealand white rabbits were randomly divided into four groups: AO (TMJ arthritis, no splint), AS (TMJ arthritis, mandibular splint advancement), OS (no arthritis, mandibular splint advancement) and OO (no arthritis, no splint)...
April 13, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28405732/determination-of-forces-on-a-split-palatal-screw-after-rapid-maxillary-expansion
#11
Valentin Javier García, Rubén López-Cancelos, Antonio Riveiro, Rafael Comesaña, Josep Maria Ustrell I Torrent, Khaled Kasem, Aida Badaoui, Mª Cristina Manzanares-Céspedes, Patricia Carvalho-Lobato
OBJECTIVES: Aim of this study was to develop a finite element model of the forces that patients with rapid maxillary expansion bear and to validate it by a mechanical test. METHODS: Computer-aided design models of the metallic screw and polymeric splint were modelled and discretized. Two forces were generated and considered independently: F1 at the temporary molar (2.5 N) and F2 at the permanent molar (2.5 N). The results of the finite element analysis were used to define the strain values which the anterior and posterior arms of the rapid maxillary expansion appliance bore as a linear function of F1-F2 by calculating the strain-force coefficient δ ij ...
April 12, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28397951/piezocision-as-an-adjunct-to-orthodontic-treatment-of-unilateral-posterior-crossbite
#12
Manal A Bakathir, Ali H Hassan, Maha A Bahammam
Piezocision (corticotomy) is a minimally invasive approach that involves micro-incisions, piezoelectric incisions, and selective tunnelling for soft or hard tissue grafting. Piezocision has many uses in orthodontics, but its uses in cross-bite cases are limited. This case report illustrates the outcomes of a 19-year-old female patient with unilateral cross-bite that was treated with a minimally invasive piezocision with bone grafting in the affected side. In addition, she also had a functional shift, severe crowding, and mid-line shift...
April 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28393815/assessment-of-treatment-response-to-splint-therapy-and-evaluation-of-tmj-function-using-joint-vibration-analysis-in-patients-exhibiting-tmj-disc-displacement-with-reduction-a-clinical-study
#13
Jyoti Devi, Mahesh Verma, Rekha Gupta
Context, Aim, and Objectives: Diagnosis of temporomandibular joint (TMJ) disc displacement with reduction (DDR) is difficult. Literature combining different subjective parameters of TMJ function with an objective evaluation of TMJ function using joint vibration analysis (JVA) is limited. Hence, the study was planned to diagnose temporomandibular disorder accurately, to do a subjective and objective evaluation of TMJ function, and to assess the effectiveness of different types of splint therapy over the conventional anterior repositioning appliance (ARA) group...
January 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28378967/effect-of-electromagnetic-waves-on-human-reproduction
#14
REVIEW
Artur Wdowiak, Paweł A Mazurek, Anita Wdowiak, Iwona Bojar
Electromagnetic radiation (EMR) emitting from the natural environment, as well as from the use of industrial and everyday appliances, constantly influence the human body. The effect of this type of energy on living tissues may exert various effects on their functioning, although the mechanisms conditioning this phenomenon have not been fully explained. It may be expected that the interactions between electromagnetic radiation and the living organism would depend on the amount and parameters of the transmitted energy and type of tissue exposed...
March 31, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28371839/excellent-versus-unacceptable-orthodontic-results-influencing-factors
#15
Katharina Klaus, Philipp Stark, Tara Suzan Paula Serbesis, Hans Pancherz, Sabine Ruf
Aim: To retrospectively compare patients with excellent and unacceptable orthodontic treatment results with respect to possible prognostic factors. Material and methods: All patients, who completed treatment at the Department of Orthodontics of the Justus-Liebig-University Giessen, Germany between 1993 and 2009 with an excellent or unacceptable outcome according to the Ahlgren index. Possibly influencing factors regarding case history, treatment, cephalometrics, and plaster casts were analyzed...
March 24, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28365810/a-retrospective-cephalometric-investigation-of-two-fixed-functional-orthodontic-appliances-in-class-ii-treatment-functional-mandibular-advancer-vs-herbst-appliance
#16
Gero Stefan Michael Kinzinger, Jörg Alexander Lisson, Linda Frye, Ulrich Gross, Jan Hourfar
OBJECTIVE: The objective of the study is to compare skeletal and dental changes in class II patients treated with fixed functional appliances (FFA) that pursue different biomechanical concepts: (1) FMA (Functional Mandibular Advancer) from first maxillary molar to first mandibular molar through inclined planes and (2) Herbst appliance from first maxillary molar to lower first bicuspid through a rod-and-tube mechanism. MATERIALS AND METHODS: Forty-two equally distributed patients were treated with FMA (21) and Herbst appliance (21), following a single-step advancement protocol...
April 1, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28356131/treatment-of-infants-with-syndromic-robin-sequence-with-modified-palatal-plates-a-minimally-invasive-treatment-option
#17
Silvia Müller-Hagedorn, Wolfgang Buchenau, Jörg Arand, Margit Bacher, Christian F Poets
BACKGROUND: Infants with Robin sequence (RS) suffer from upper airway obstruction (UAO) and feeding problems. We developed an oral appliance with a velar extension in combination with functional treatment and appropriate feeding techniques, which was proven effective in isolated RS. As the above problems are particularly challenging in syndromic RS, we set out to evaluate our treatment concept also in these patients. METHODS: We searched our electronic departmental database to identify all children admitted to our department between 01/01/2003 and 31/12/2009 because of syndromic RS...
March 30, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/28319528/postburn-microstomia-prevention-using-an-appliance-providing-simultaneous-horizontal-and-vertical-adjustable-forces
#18
Gregory S Antonarakis, Sandra Fastlicht, Taras Masnyi, Bryan Tompson
Microstomia, an abnormally small oral orifice, is a complication of perioral facial burns. In this case, contraction of the circumoral tissues and hypotonia of the musculature is responsible for this microstomia, which can produce aesthetic and functional impairment with eating, swallowing, communication (speech and facial expressions), compromised dental care and maintenance due to limited oral access, social interactions, and psychological well-being. Conservative management involves providing physical resistance to scar contracture, with opposing horizontal and vertical circumoral forces by means of appliances that aim to stretch the commissures and fibrotic muscles...
March 13, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28318159/-meta-analysis-of-the-condylar-position-changes-produced-by-functional-appliances-in-class-%C3%A2-malocclusion
#19
Huang Xinqi, Cen Xiao, Liu Jun
OBJECTIVE: This study aimed to analyze the condylar position changes produced by functional appliances in class Ⅱ malocclusion by systematic review. METHODS: Electronic search was conducted using Chinese Biomedical Literature Database, China National Knowledge Infrastructure, VIP Database for Chinese Technical Periodicals, Medline, Embase, Pubmed, and Cochrane Central Register of Controlled Trials. Studies on condylar position changes produced by functional appliances in class Ⅱ malocclusion were included...
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28317354/-comparing-study-on-the-hyoid-bone-position-after-treatment-of-class-%C3%A2-malocclusion-using-improved-appliance-fr-%C3%A2
#20
COMPARATIVE STUDY
Zhu Yuanping, Duan Yinzhong
OBJECTIVE: This study aims to compare the changes of hyoid bone position before and after treatment of Angle class Ⅲ malocclusion using improved appliance FR Ⅲ. METHODS: Forty patients with Angle class Ⅲ malocclusion were chosen and divided into two groups, namely, experimental and control. Each group had 20 patients. The young patients in the experi-mental group were treated using improved appliance FR Ⅲ, whereas those in the control group were treated using classic appliance FR Ⅲ...
August 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
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