scholarly journals Genotoxic and cytotoxic effects of Haas appliance in exfoliated buccal mucosa cells during orthodontic treatment

2018 ◽  
Vol 88 (5) ◽  
pp. 590-595 ◽  
Author(s):  
Arthur S. Cunha ◽  
Willian Orlando Castillo ◽  
Catarina Satie Takahashi ◽  
Erika Calvano Küchler ◽  
Raquel Assed Bezerra Segato ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Buccal Mucosa ◽  
Orthodontic Treatment ◽  
Nonparametric Tests ◽  
Cytotoxic Effects ◽  
Significance Level ◽  
Posterior Crossbite ◽  
Cellular Abnormalities ◽  
Variance Testing ◽  
The Right

ABSTRACT Objectives: To evaluate the genotoxic and cytotoxic effects of Haas appliances through micronuclei test and cytogenetic damage analysis in buccal mucosa epithelial cells of patients undergoing orthodontic treatment. Materials and Methods: Twenty-eight patients, 6–12 years of age and of both genders, who required a Haas appliance for the correction of a posterior crossbite were included. Epithelial cells from the mucosa were collected by gently scraping the inside of both the right and left cheeks. The cells were collected before the insertion of the appliance (T0), 1 month after the device was installed (T1), and again 3 months after the appliance was immobilized (T2). The cells were processed to obtain slides. Feulgen/Fast Green was used as the staining method, and the number of normal, karyolytic, pyknotic, nuclear buds, bi/trinucleated, and micronucleus cells were counted under light microscopy. Cellular abnormalities were evaluated with parametric and nonparametric tests for comparison of the means by analysis of variance testing, Tukey posttest, or the Kruskal-Wallis test and then by Dunn's posttest. The significance level was 5%. Results: There were no statistically significant changes in the micronuclei in the evaluated periods (P > .05). Nuclear buds increased at T1 (P < .05), returning to baseline levels at T2. Other abnormalities (cariolytic, pyknotic, and bi/trinucleated cells) showed a significant increase at T1 and T2 (P < .0001). Conclusions: The Haas appliance did not cause an increase in micronuclei in cells of the buccal mucosa. However, statistically significant increases in cariolytic, pyknotic, and bi/trinucleated cells were observed during treatment, suggesting possible DNA damage.

Mesioangulation of mandibular second molars: A case report

2021 ◽  
pp. 146531252110171
Author(s):  
Silvio Augusto Bellini-Pereira ◽  
Maria Pia Seminario ◽  
Rodrigo Naveda ◽  
José Fernando Castanha Henriques ◽  
Daniela Garib ◽  
...  
Keyword(s):  
Case Report ◽  
Orthodontic Treatment ◽  
Upright Position ◽  
Second Molar ◽  
Posterior Crossbite ◽  
Simple Alternative ◽  
Aesthetic Results ◽  
Mandibular Second Molar ◽  
One Year ◽  
The Right

This case report describes a simple alternative for treatment of mesioangulation of mandibular second molars. An 11-year-old girl was diagnosed with unilateral posterior crossbite, moderate incisor crowding and mesioangulation of the right mandibular second molar. The ectopic second molar was uprighted using a modified lingual arch with a distal hook and elastic chains. Orthodontic traction began after appliance installation and was activated once per month using 120 g of force. After six months, the right mandibular second molar was in an upright position. Orthodontic treatment continued with teeth levelling and alignment until acceptable occlusal and aesthetic results were achieved. Adequate stability was observed one year after debonding. The modified mandibular lingual arch with a distal hook is a simple and effective alternative to manage mesioangulation of mandibular second molars with minimum adverse effects and stable outcomes.

Prevalence of Posterior Crossbite for Orthodontic Treatment Timing

2016 ◽  
Vol 40 (5) ◽  
pp. 422-424 ◽  
Author(s):  
Kahraman Gungor ◽  
Lale Taner ◽  
Emine Kaygisiz
Keyword(s):  
Study Design ◽  
Orthodontic Treatment ◽  
Statistical Evaluation ◽  
Permanent Dentition ◽  
Primary Dentition ◽  
Chi Square ◽  
Treatment Timing ◽  
Posterior Crossbite ◽  
Increasing Trend ◽  
The Right

Objective: To evaluate the prevalence and distribution of posterior crossbite in different dentition stages in a Turkish sample. Study Design: 1554 subjects (843 girls, 711 boys) aged 4–25 years were evaluated to determine the prevalence of posterior crossbite in a Turkish sample. The subjects were classified according to four dentition stages (primary, early mixed, late mixed and permanent) and transversal occlusal status. The statistical evaluation was done by Chi-square, Fischer exact tests. Results: Bilateral and unilateral crossbite on the right and left sides had the highest frequency in the permanent dentition (51.0%, 47.3%, and 53.6%; respectively). No significant differences were found between unilateral (right and left) and bilateral crossbite with regard to dentition stages. No significant differences were found between unilateral right or left side posterior crossbite with regard to dentition stages. Conclusion: An increasing trend in the prevalence of posterior crossbite was observed from the primary dentition towards permanent dentition in this study.

scholarly journals Perawatan bedah ortognati pada maloklusi dentoskeletal kelas III dengan asimetri wajah dan canting oklusal rahang atasOrthognathic surgical treatment of class III dentoskeletal malocclusion with facial asymmetry and maxillary occlusal cant

2021 ◽  
Vol 32 (3) ◽  
pp. 164
Author(s):  
Endah Mardiati ◽  
Ida Ayu Astuti
Keyword(s):  
Case Report ◽  
Orthognathic Surgery ◽  
Orthodontic Treatment ◽  
Facial Asymmetry ◽  
Class Iii ◽  
Le Fort ◽  
Posterior Crossbite ◽  
Skeletal Malocclusion ◽  
Anterior Teeth ◽  
The Right

Pendahuluan: Asimetri wajah akibat canting oklusal rahang atas seringkali menjadi keluhan  estetika wajah pasien. Perawatan canting oklusal parah memerlukan kombinasi perawatan ortodonti cekat dengan bedah ortognati. Tujuan laporan kasus ini adalah untuk menjelaskan perawatan ortodonti cekat kombinasi bedah Le Fort 1 pada kasus canting oklusal rahang atas pada maloklusi dentoskeletal kelas III disertai asimetri wajah. Laporan kasus: Seorang pasien perempuan umur 17 tahun 7 bulan datang ke praktek pribadi dengan keluhan gigi rahang atas miring, gigi belakang kanan tidak dapat mengunyah dengan nyaman. Pasien ingin dirawat gigi dan rahangnya. Pemeriksaan ekstra oral menunjukan wajah asimetri, profil cekung dan dagu sedikit menonjol. Pemeriksaan intra oral,  garis median rahang atas bergeser ke kiri, rahang bawah bergeser ke kanan, crossbite anterior, crossbite posterior unilateral, retrusi gigi anterior rahang atas dan rahang bawah. Analisis sefalometri lateral: maloklusi dentoskeletal kelas III. Diagnosis yang diberikan adalah maloklusi dentoskeletal kelas III disertai canting oklusal rahang atas, wajah asimetri, crossbite anterior, crossbite unilateral posterior. Rencana perawatan adalah perawatan ortodonti cekat kombinasi bedah ortognati Le Fort 1. Perawatan dilakukan dalam 4 tahap yaitu perawatan ortodonti dekompensasi, perawatan bedah ortognati rahang atas, perawatan ortodonti pasca bedah rahang, debonding dan pemasangan retainer. Simpulan: Maloklusi skeletal kelas III disertai canting oklusal rahang atas, asimetri wajah, crossbite anterior, dan crossbite posterior unilateral, yang dirawat menggunakan alat ortodonti cekat dan bedah ortognati Le Fort 1 dapat berhasil dengan baik. Relasi dental dan skeletal tercapai kelas I, interdigitasi gigi rahang atas dan rahang bawah mengunci, fungsi pengunyahan terkoreksi serta pasien merasa sangat puas dengan estetika wajahnya.Kata kunci: Maloklusi skeletal kelas III, asimetri wajah, canting maksila, crossbite anterior, crossbite posterior unilateral, bedah ortognati. ABSTRACTIntroduction: Facial asymmetry due to maxillary occlusal cant often becomes a facial aesthetics complaint. Treatment of severe occlusal cant requires a combination of fixed orthodontic treatment with orthognathic surgery. This case report was aimed to describe the combined fixed orthodontic treatment of Le Fort 1 in maxillary occlusal cant of class III dentoskeletal malocclusion with facial asymmetry. Case report: A female patient aged 17 years seven months came to the private clinic, complained of oblique maxillary teeth, and the right posterior was unable to masticate comfortably. The patient wants to be treated for her teeth and jaw. Extraoral examination revealed facial asymmetry, sunken profile and slightly protruding chin. The intraoral examination resulted in the maxillary median line that shifted to the left, mandible shifted to the right, anterior crossbite, unilateral posterior crossbite, and retrusion of maxillary and mandibular anterior teeth. The lateral cephalometric analysis resulted in class III dentoskeletal malocclusion. The diagnosis was class III dentoskeletal malocclusion with maxillary occlusal cant, facial asymmetry, anterior crossbite, and posterior unilateral crossbite. The treatment plan was fixed orthodontic treatment combined with Le Fort orthognathic surgery. The treatment was carried out in 4 stages: decompensated orthodontic treatment, maxillary orthodontic treatment, post-orthognathic surgery orthodontic treatment, debonding, and retainer placement. Conclusion: Class III skeletal malocclusion with maxillary occlusal cant, facial asymmetry, anterior crossbite, and the unilateral posterior crossbite was successfully treated with a fixed orthodontic appliance and Le Fort 1 orthognathic surgery. The dental and skeletal relations were achieved for class I, the interdigitation of the maxillary and mandibular teeth was locked, the masticatory function was corrected, and the patient was very satisfied with her facial aesthetics.Keywords: Class III skeletal malocclusion, facial asymmetry, maxillary cant, anterior crossbite, unilateral posterior crossbite, orthognathic surgery.

scholarly journals Steering the Mandible in the Right Direction : Forsus Case Series

2021 ◽  
pp. 030157422110054
Author(s):  
Prachi Gohil ◽  
Sonali Mahadevi ◽  
Bhavya Trivedi ◽  
Neha Assudani ◽  
Arth Patel ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Case Series ◽  
Treatment Compliance ◽  
Class Ii ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Technological Advances ◽  
Functional Appliances ◽  
The Right ◽  
Mandibular Retrognathia

We are in the process of discovery of new vistas for technological advances in terms of various appliances with a vision of making orthodontic treatment compliance free as well as successful. Due to improved technology, the enigma of treating the Class II syndrome is palliated. “Out of the box” thinking has become a norm to treat certain situations that were not corrected in noncompliant patients. Fixed functional appliances are valuable tools introduced to assist the correction of skeletal Class II malocclusion with mandibular retrognathia at the deceleration stage of growth for achieving stable results. In this direction a case series is reported of patients having the above conditions and undergoing orthodontic treatment using a Forsus FFA. Joining hands with technology is a win-win situation for both the patient and the orthodontist.

scholarly journals The Relationship between Foot Status and Motor Status in Preschool Children: A Simple, Comparative Observational Study

Healthcare ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 936
Author(s):  
Milan Kojić ◽  
Branka Protić Gava ◽  
Milan Bajin ◽  
Marko Vasiljević ◽  
Jasmina Bašić ◽  
...  
Keyword(s):  
Preschool Children ◽  
Observational Study ◽  
Total Sample ◽  
Nonparametric Tests ◽  
Significance Level ◽  
Flat Feet ◽  
Significant Difference ◽  
Left And Right ◽  
The Relationship

Background: The research objective of the study is to determine the differences in the manifestation of the motor status of normally fed preschool test subjects, classified into groups according to foot status. Methods: This is a simple, comparative observational study. Preschool children included in this study have been subjected to anthropometric measurements in order to determine BMI, tests for motor skills assessment (running at 20 m from a high start, standing broad jump, backwards polygon, rectangular seated forward bend, plate tapping, sit-ups for 60 s, and bent arm hang), and a determination of foot status. The total sample was comprised of 202 test subjects who attended a regular sports program, aged 3.9 to 6.5 years of decimal age (M = 141; Age = 5.3 ± 0.74; Height = 117.3 ± 7.1; Weight = 22 ± 3.7; F = 61; Age = 5.1 ± 0.73; Height = 114.9 ± 7.4; Weight = 21.2 ± 3.8), of which 153 (75.7%) were normally fed, 6 (3%) were undernourished, 30 were overweight (14.9%), and 13 were obese (6.4%). Results: In the total sample, 30 (14.9%) subjects had normal arch feet, 90 (44.6%) high arched feet, and 41 (20.3%) flat feet. We found 41 (20.3%) subjects who had different left and right foot statuses within this sample. The data were processed by means of nonparametric tests (the Kruskal–Wallis and Mann–Whitney U tests) at a significance level p ≤ 0.05. Conclusion: The results show that there is a statistically significant difference between groups of subjects with different foot statuses in the manifestation of motor status in most tests, with a significance level of p ≤ 0.01, and in tests of sit-ups for 60 s and the bent arm hang, there is a statistically significant difference, the level of which is p ≤ 0.05. It is only in the inclination test of rectangular seated forward bend that no statistically significant difference was displayed.

scholarly journals Clinical Evaluation of Bracket Bonding Using Two Different Polymerization Sources

2008 ◽  
Vol 78 (5) ◽  
pp. 922-925 ◽  
Author(s):  
Nikolaos S. Koupis ◽  
Theodore Eliades ◽  
Athanasios E. Athanasiou
Keyword(s):  
Failure Rate ◽  
Orthodontic Treatment ◽  
Light Emitting Diode ◽  
Rank Test ◽  
Dental Arch ◽  
Halogen Lamp ◽  
Failure Rates ◽  
Bond Failure ◽  
Significant Difference ◽  
The Right

Abstract Objective: To comparatively assess clinical failure rate of brackets cured with two different photopolymerization sources after nine months of orthodontic treatment. Materials and Methods: The sample of this study comprised 30 patients who received comprehensive orthodontic treatment by means of fixed appliances. Using the same adhesive, 600 stainless steel brackets were directly bonded and light cured for 10 seconds with the light-emitting diode (LED) lamp or for 20 seconds with the conventional halogen lamp. A split-mouth design randomly alternated from patient to patient was applied. Failure rates were recorded for nine months and analyzed with Pearson χ2 test, and log-rank test at α = .05 level of significance. Results: The overall failure rate recorded with the halogen unit (3.33%) was not significantly different from the failure rate for the LED lamp (5.00%). Significantly more failures were found in boys compared with girls, in the mandibular dental arch compared with the maxillary arch, and in posterior segments compared with anterior segments. However, no significant difference was found between the right and left segments. Conclusion: Both light-curing units showed sufficiently low bond failure rates. LED curing units are an advantageous alternative to conventional halogen sources in orthodontics because they enable a reduced chair-time bonding procedure without significantly affecting bond failure rate.

A RARE CASE OF RECURRENT ADENOID CYSTIC CARCINOMA OF THE BUCCAL MUCOSA

2021 ◽  
pp. 1-2
Author(s):  
Surya Rao Rao Venkata Mahipathy ◽  
Alagar Raja Durairaj ◽  
Narayanamurthy Sundaramurthy ◽  
Anand Prasath Jayachandiran ◽  
Suresh Rajendran
Keyword(s):  
Adenoid Cystic Carcinoma ◽  
Buccal Mucosa ◽  
Malignant Neoplasm ◽  
Neck Region ◽  
Surgical Excision ◽  
Minor Salivary Glands ◽  
Head And Neck Region ◽  
Adenoid Cystic ◽  
The Right ◽  
Carcinoma Buccal Mucosa

Adenoid cystic carcinoma is a malignant neoplasm most commonly originating in the minor salivary glands of head and neck region. Among intra oral adenoid cystic carcinoma, buccal mucosa is one of the rarer sites. Here, we report a case of recurrent adenoid cystic carcinoma of the right buccal mucosa in a 33 year old female. As this is an uncommon site for adenoid cystic carcinoma, it should be considered as a differential diagnosis of mass of buccal mucosa. It is imperative that we identify such cases and plan for early surgical excision with adequate margins.

Orthodontic management of compromised first permanent molars with bilateral posterior crossbite, severe crowding and impacted maxillary canines.

2021 ◽  
Vol 20 (4) ◽  
pp. 926-929
Author(s):  
Haytham Jamil Alswairki ◽  
Mohammad Khursheed Alam
Keyword(s):  
Orthodontic Treatment ◽  
Medical Science ◽  
Class Ii ◽  
Case Presentation ◽  
Skeletal Class ◽  
Posterior Crossbite ◽  
Clinical Challenge ◽  
Skeletal Class Ii ◽  
Permanent Molars ◽  
First Permanent Molars

Background: A unique clinical challenge presents when dealing with a compromised first permanent molars with bilateral posterior crossbite, severe crowding and impacted maxillary canines with skeletal class II base malocclusion patient. Case presentation: 14-year-old female patient had dental Class II skeletally, complicated with increase overjet, badly destructed permanent mandibular 1st molars constricted maxillary arch. Extraction of 1st molars followed by expansion have been planned to relieve crowding. Extraction of 1st molars in this time (furcation of 3rd molars start to develop) help in replacement by 2nd molars. In the progression of treatment, Conclusion: A well-balanced and esthetic occlusion by edge wise orthodontic treatment has been archived in this case. Bangladesh Journal of Medical Science Vol.20(4) 2021 p.926-929

Nickel Variation in Biofilm, Saliva and Buccal Mucosa During Orthodontic Treatment

2016 ◽  
Vol 10 (1) ◽  
pp. 45-49
Author(s):  
V. Causado-Vi ◽  
M. Rumbo-Zubi ◽  
L. Fang ◽  
A. Diaz-Cabal
Keyword(s):  
Buccal Mucosa ◽  
Orthodontic Treatment

scholarly journals Prevalence of Cross Bite Among the Orthodontic Patients in Bangabandhu Sheikh Mujib Medical University

2015 ◽  
Vol 26 (1) ◽  
pp. 9-12
Author(s):  
Naznin Sultana ◽  
Gazi Shamim Hassan ◽  
Digamber Jha ◽  
Towhida Nashrin ◽  
Lutfun Nahar ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Class I ◽  
Dental Arch ◽  
Diagnostic Model ◽  
Class Iii ◽  
Posterior Crossbite ◽  
Orthodontic Patients ◽  
Medical University ◽  
Functional Components ◽  
Congenitally Missing

Crossbite is one of the most prevalent malocclusion, posterior crossbite occurs in 8% to 22% of orthodontic cases and anterior crossbite has been seen in Class III cases, which accounts for 3.4% of orthodontic cases. The etiology of posterior crossbite can include any combination of dental, skeletal, and neuro muscular functional components, but the most frequent cause is reduction in width of the maxillary dental arch. Patients/cases seeking comprehensive orthodontic treatment in between 5 to 35 years were diagnosed for crossbite with diagnostic model and care record file. Out of 300 cases 163(54.3%) had crossbite, 90(30%) had anterior crossbite and 109(36.3%) had posterior cross bite. Among posterior crossbite 60(20%) had unilateral and 49(16.3%) had bilateral crossbite. Posterior crossbite was more prevalent than anterior crossbite. Cases with Class I molar relation showed more crossbite. Crossbite was more prevalent in cases with congenitally missing teeth.Bangladesh J Medicine Jan 2015; 26 (1) : 9-12

Sign in / Sign up

Export Citation Format

Share Document