scholarly journals Anchorage condition during canine retraction using transpalatal arch with continuous and segmented arch mechanics

2015 ◽  
Vol 86 (3) ◽  
pp. 380-385 ◽  
Author(s):  
Adel Alhadlaq ◽  
Thamer Alkhadra ◽  
Tarek El-Bialy
Keyword(s):  
Orthodontic Treatment ◽  
The Other ◽  
Cephalometric Analysis ◽  
Forward Movement ◽  
Maxillary Canine ◽  
Premolar Extraction ◽  
Canine Retraction ◽  
Before And After ◽  
Point Data ◽  
Transpalatal Arch

ABSTRACT Objective:  To compare anchorage condition in cases in which transpalatal arch was used to enhance anchorage in both continuous and segmented arch techniques. Materials and Methods:  Twenty cases that required first premolar extraction for orthodontic treatment and transpalatal arch to enhance anchorage were included in this study. Ten cases were treated using the continuous arch technique, while the other 10 cases were treated using 0.019 × 0.025-inch TMA T-loops with posterior anchorage bend according to the Burstone and Marcotte description. Lateral cephalometric analysis of before and after canine retraction was performed using Ricketts analysis to measure the anteroposterior position of the upper first molar to the vertical line from the Pt point. Data were analyzed using an independent sample t-test. Results:  There was a statistically significant forward movement of the upper first molar in cases treated by continuous arch mechanics (4.5 ± 3.0 mm) compared with segmented arch mechanics (−0.7 ± 1.4 mm; P  =  .01). Conclusions:  The posterior anchorage bend to T-loop used to retract the maxillary canine can enhance anchorage during maxillary canine retraction.

scholarly journals Comparison of the rate of maxillary canine retraction with or without modified corticotomy facilitated orthodontic treatment

2021 ◽  
Vol 4 ◽  
pp. 8-13
Author(s):  
M. Kokila ◽  
Vinaya S. Pai ◽  
Siri Krishna ◽  
Gautham Kalladka ◽  
Shreyas Rajaram ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Contralateral Side ◽  
Maxillary Canine ◽  
Mean Velocity ◽  
Premolar Extraction ◽  
Canine Retraction ◽  
Effective Treatment Modality ◽  
Pre Treatment ◽  
Leveling And Alignment

Objectives: The aim of the study was to evaluate and compare the rate of maxillary canine retraction in cases with modified corticotomy versus without modified corticotomy. Clinical interventional study. Split mouth design was used. Materials and Methods: A sample size of ten patients and 20 sites were selected within the age group of 18–35 years following all criteria of the study. Before orthodontic leveling and alignment, upper first premolar extraction was carried out under local anesthesia. Pre-treatment OPG and IOPA were taken in relation to the maxillary canine and maxillary second premolar teeth. One extraction side was considered as the experimental site and contralateral side as control. Leveling and alignment were started with wire sequence. After modified corticotomy procedure, the canine retraction was started with 8 mm NiTi closed coil spring. The amount of tooth movement was recorded with the help of a Digital Vernier Caliper at an interval of 1 month till the completion of canine retraction. Results: Paired t-test showed higher mean velocity of tooth movement in modified corticotomy side (1.07 ± 0.25) as compared to the conventional side (0.91 ± 0.24), (P < 0.001). Conclusion: The modified corticotomy technique serves as an effective treatment modality for adults seeking orthodontic treatment with increased rate of orthodontic canine retraction.

scholarly journals Changes in vertical dimension: Extraction versus non-extraction

2019 ◽  
Vol 9 (1) ◽  
pp. 19-27
Author(s):  
Khulood Alhajeri ◽  
Pratik Premjani ◽  
Ahmed Ismail ◽  
Donald Ferguson
Keyword(s):  
Orthodontic Treatment ◽  
Vertical Dimension ◽  
Cephalometric Analysis ◽  
Forward Movement ◽  
Linear Measurements ◽  
Premolar Extraction ◽  
Facial Height ◽  
Extraction Therapy ◽  
Lateral Cephalograms ◽  
Vertical Changes

Introduction: To evaluate and compare the vertical changes in patients treated orthodontically with or without different patterns of premolars extraction. Materials & Method: The lateral cephalograms of 112 orthodontically treated patients were categorized into four groups of 28 each based upon extraction strategy. Cephalometric analysis comprised of 3 angular and 8 linear measurements were used to analyze vertical changes from pre- to post treatment. Result: Active orthodontic treatment with or without various premolar extraction therapies led to a statistically significantly increase in the anterior facial height. Second premolar extraction resulted in significantly greater forward movement of the maxillary and mandibular first molars compared to non-extraction therapy. Conclusion: Active orthodontic treatment resulted in no significant changed in maxillary to mandibular (MM) angle with or without extraction therapy.

scholarly journals Management of chronic periodontitis: an interdisciplinary approach

2016 ◽  
Vol 4 (2) ◽  
pp. 65
Author(s):  
Sneha Dani ◽  
Savitha A.N ◽  
Kenneth Tan ◽  
Anand Naik ◽  
Charan Chhatrala ◽  
...  
Keyword(s):  
Public Interest ◽  
Orthodontic Treatment ◽  
Interdisciplinary Approach ◽  
Primary Objective ◽  
Periodontal Therapy ◽  
The Other ◽  
Periodontal Health ◽  
Orthodontic Therapy ◽  
Single Tooth ◽  
Before And After

Objective: In recent years, advances in technique as well as a growing public interest in developing and maintaining a healthy and attractive smile, has resulted in a greater understanding of the interrelationships between periodontics and orthodontics. The primary objective of periodontal therapy is to restore and maintain the health and integrity of the attachment apparatus of teeth. In adults, the loss of teeth or periodontal support can result in pathological teeth migration involving either a single tooth or a group of teeth. This may result in the development of a diastema, incisal proclination, rotation with collapse of the posterior occlusion.Materials and methods: This case report is of a 32 year old female patient who reported with swollen gums, generalized spacing between the teeth and extruded upper anterior tooth. Periodontal therapy followed by fixed orthodontic therapy was planned.Results: At the end of 2 years a stable healthy periodontium was established that was both functional and esthetic.Conclusion: Adjunctive orthodontic therapy is often necessary for successful restoration of periodontal health. On the other hand, successful orthodontic treatment will depend on the periodontal preparation before and after treatment and the maintenance of periodontal health throughout all phases of mechano-therapy.

scholarly journals Various methods of canine retraction in premolar extraction space: A case series

2021 ◽  
Vol 7 (4) ◽  
pp. 310-315
Author(s):  
Neeteesh K Shukla ◽  
Shivam Verma ◽  
Parnita Dwivedi ◽  
Nimmi Gupta ◽  
Sneha Singh
Keyword(s):  
Case Series ◽  
Invasive Procedures ◽  
Maxillary Canine ◽  
Premolar Extraction ◽  
Canine Retraction ◽  
Temporary Anchorage Devices ◽  
Anchorage Loss

Following article is the review and presentation of various methodologies of canine retraction [e.g.– methods under sliding and friction less mechanics, facilitation with TADs (Temporary Anchorage Devices) and MOPs (Micro-Osteo-Perforations), and invasive procedures etc.] and comparison of these methods in terms of rate of canine retraction, and molar anchorage loss. Patient’s age ranges between 15y to 19y and only right maxillary canine was taken for comparison purpose.

scholarly journals Orthodontic management of a complete and an incomplete maxillary canine-first premolar transposition

2019 ◽  
Vol 90 (3) ◽  
pp. 457-466 ◽  
Author(s):  
Carmen Lorente ◽  
Pedro Lorente ◽  
Maria Perez-Vela ◽  
Cristina Esquinas ◽  
Teresa Lorente
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Early Diagnosis ◽  
Orthodontic Treatment ◽  
The Other ◽  
Cone Beam ◽  
Normal Position ◽  
Maxillary Canine ◽  
Apical Position ◽  
Complete Transposition

ABSTRACT Maxillary canine and first premolar transposition is a complicated dental anomaly to treat, especially if the clinician's goal is to orthodontically move the canine into its normal position. Early diagnosis with cone-beam computed tomography simplifies the treatment of this pathology. This case report describes a patient with bilateral transposition, one complete and the other incomplete, involving the maxillary canine and the first premolar (Mx.C.1P). The orthodontic treatment involved the correction of both transpositions. In the complete transposition, the traction was mesial and upward to move the canine into a more apical position with a wider dentoalveolar process for easier crown interchange.

scholarly journals Geometric analysis of alveolar bone around the incisors after anterior retraction following premolar extraction

2019 ◽  
Vol 90 (2) ◽  
pp. 173-180 ◽  
Author(s):  
Fan Zhang ◽  
Suk-Cheol Lee ◽  
Jun-Beom Lee ◽  
Kyung-Min Lee
Keyword(s):  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Shape Change ◽  
Geometric Analysis ◽  
Careful Consideration ◽  
Mandibular Incisor ◽  
Premolar Extraction ◽  
Significant Difference ◽  
Before And After ◽  
Mandibular Incisors

ABSTRACT Objective: To evaluate changes in shape and alterations in thickness and vertical marginal bone levels of the alveolar bone around the maxillary and mandibular incisors before and after orthodontic treatment with premolar extraction using geometric morphometric analysis. Materials and Methods: Thirty-six patients with Class I bialveolar protrusion who underwent orthodontic treatment with premolar extraction were included. Cone-beam computed tomographic scans were obtained from the patients before and after treatment. Five fixed landmarks and 70 semilandmarks were used to represent the morphology of the alveolar bone around the maxillary and mandibular incisors. The coordinates of the landmarks of the alveolar bones were generated by Procrustes fit. The labial and lingual alveolar bone thicknesses around the maxillary and mandibular incisors and vertical marginal bone level were assessed quantitatively. Results: There was a significant difference in shape change of the alveolar bone before and after treatment. The deformation grid of the thin plate spline showed that the thickness and vertical marginal bone decreased on the lingual side after treatment. Shape changes were greater for the lingual alveolar bone on the mandibular incisor than for the maxillary incisors. Conclusions: Orthodontic treatment with premolar extraction might cause loss of alveolar bone around the maxillary and mandibular incisors. Careful consideration is needed to avoid iatrogenic degeneration of periodontal support around the incisors, particularly in the lingual area.

scholarly journals Comparison of rate of maxillary canine movement with or without modified corticotomy facilitated orthodontic treatment: A prospective clinical trial

2015 ◽  
Vol 5 ◽  
pp. 138-143 ◽  
Author(s):  
Harshal N. Suryavanshi ◽  
Vaishali R. Das ◽  
Aashish Deshmukh ◽  
Raj Rai ◽  
Mena Vora
Keyword(s):  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Root Resorption ◽  
Treatment Time ◽  
Orthodontic Tooth Movement ◽  
Radiographic Examination ◽  
Maxillary Canine ◽  
Mean Velocity ◽  
Canine Retraction ◽  
Extraction Therapy

Background and Objectives The average orthodontic treatment time for extraction therapy is 31 months. One of the main disadvantages of orthodontic treatment is time. Alveolar corticotomies have been used in conjunction with orthodontics to reduce the treatment time by increasing the rate of tooth movement. Concerns about the possible risks of corticotomy procedure have led to the modification of this technique. Germeç et al. reported a case treated by their modified corticotomy technique and noted reduced treatment time without any adverse effects on the periodontium and the vitality of teeth with their new conservative corticotomy technique. This study was undertaken to clinically evaluate the efficacy of the aforesaid technique. Materials and Methods A split-mouth study design was carried out to compare the rate of maxillary canine movement with and without modified corticotomy facilitated orthodontic treatment in 10 patients requiring maxillary first premolar extractions. The modified corticotomy procedure was performed on the maxillary arch unilaterally. The upper arch was immediately activated bilaterally after surgical procedure using equal orthodontic forces for retraction of the maxillary canines. The amount of tooth movement was recorded at an interval of every month till the completion of canine retraction. The rate of canine movement on experimental and control site was compared. The patients were followed for 6 months to check the occurrence of undesired effects such as root resorption, periodontal damage and loss of vitality of teeth on the experimental side. Results Higher mean velocity was observed in canines with modified corticotomy facilitated retraction compared to conventionally retracted canines; with the difference in mean velocity between the two groups was found to be clinically significant as well as statistically significant (P < 0.001). Interpretation and Conclusion The results suggested that modified corticotomy technique serves as an effective and safe way to accelerate orthodontic tooth movement, without adversely affecting the periodontium, root resorption, and the vitality of the teeth, as concluded by clinical and radiographic examination.

scholarly journals Posisi kondilus setelah perawatan ortodontik pada maloklusi kelas II divisi 1 dengan pencabutan premolarCondylar position after orthodontic treatment in class II division 1 malocclusion with premolar extraction

2021 ◽  
Vol 33 (1) ◽  
pp. 59
Author(s):  
Dhani Ayu Andini ◽  
Maria Purbiati ◽  
Nia Ayu Ismaniati Suria ◽  
Ira Tanti
Keyword(s):  
Temporomandibular Joint ◽  
Orthodontic Treatment ◽  
Joint Space ◽  
Class Ii ◽  
Temporomandibular Joint Disorders ◽  
Premolar Extraction ◽  
Division 1 ◽  
Before And After ◽  
The Right ◽  
Class Ii Division 1

Pendahuluan: Maloklusi kelas II divisi 1 dilaporkan seringkali memicu terjadinya gangguan sendi temporomandibula. Posisi kondilus mengalami perubahan pada akhir perawatan ortodontik dengan pencabutan premolar pada maloklusi kelas II divisi 1. Tujuan penelitian menganalisis posisi kondilus pada akhir perawatan ortodontik supaya dapat memberikan pelayanan yang efektif dan komprehensif kepada pasien. Metode: Jenis penelitian deskriptif observasional dengan desain kohort dilakukan pada Klinik Spesialis RSKGM FKG UI dari Maret sampai Mei 2019. Subjek sebanyak 30 orang mengalami maloklusi kelas II divisi 1 yang memiliki gejala gangguan temporomandibular yang memenuhi kriteria inklusi. Metode sampling yang digunakan adalah sampling konsekutif. Foto transkranial dibandingkan dan diukur ruang sendinya bagian anterior, posterior dan superior dan dianalisis menggunakan uji Mc Nemar. Hasil: Sebelum dan sesudah perawatan ortodontik, posisi kondilus kanan dan kiri tidak mengalami perubahan yang signifikan (p>0,05). Sebelum dan sesudah perawatan ortodontik, AJS (Anterior Joint Space), PJS (Posterior Joint Space), SS (Superior Space) kanan dan kiri tidak mengalami perubahan yang signifikan (p>0,05). Gejala gangguan sendi temporomandibula pada akhir perawatan ortodontik adalah kliking dan krepitasi dilaporkan masih ada sedangkan gejala tidak nyaman dan keterbatasan membuka mulut dilaporkan sudah hilang.  Simpulan: Tidak terdapat perbedaan posisi kondilus kanan dan kiri, sebelum dan sesudah perawatan ortodontik dengan pencabutan premolar pada maloklusi kelas II divisi 1. Keluhan gangguan sendi temporomandibular tidak ditemukan lagi pada akhir perawatan ortodontik.Kata kunci: Posisi kondilus, perawatan ortodontik, maloklusi kelas II divisi 1, pencabutan premolar. ABSTRACTIntroduction: Class II division 1 malocclusion is reported to trigger temporomandibular joint disorders often. The position of the condyles changed at the end of orthodontic treatment with premolar removal in class II division 1 malocclusion. This study aimed to analyse the position of the condyles at the end of orthodontic treatment to provide effective and comprehensive services to patients. Methods: This type of descriptive observational study with a cohort design was conducted at the Specialist Clinic of University of Indonesia Dental Hospital from March to May 2019. Thirty subjects experienced class II division 1 malocclusion who had temporomandibular disorders that met the inclusion criteria. The sampling method used was consecutive sampling. Transcranial radiographs were compared, and anterior, posterior and superior joint spaces were measured and analysed using the McNemar test. Results: Before and after orthodontic treatment, the position of the right and left condyles did not change significantly (p>0.05). Before and after orthodontic treatment, AJS (Anterior Joint Space), PJS (Posterior Joint Space), SS (Superior Space) right and left did not change significantly (p>0.05). Symptoms of temporomandibular joint disorder at the end of orthodontic treatment were clicking, and crepitus was reported to be present, while the symptoms of discomfort and limited opening of the mouth were reported to have disappeared. Conclusion: There is no difference in the position of the right and left condyles before and after orthodontic treatment with premolar extraction in class II division 1 malocclusion. Complaints of temporomandibular joint disorders were not found again at the end of orthodontic treatment. Keywords: Condyle position, orthodontic treatment, class II division 1 malocclusion, premolar extraction.

scholarly journals Influence of Orthodontic Treatment with Premolar Extraction on the Spatial Position of Maxillary Third Molars in Adult Patients: A Retrospective Cone-bean Computed Tomography Study

2020 ◽  
Author(s):  
Fangwei Pan ◽  
Zhentao Yang ◽  
Jian Wang ◽  
Jialing Liu ◽  
Chenghao Zhang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Orthodontic Treatment ◽  
Spatial Position ◽  
Adult Patients ◽  
Third Molars ◽  
Position Change ◽  
Premolar Extraction ◽  
The Third ◽  
Anterior Nasal Spine ◽  
Before And After

Abstract Background: The aim of this study was to evaluate the changes in position, angulation, and rotation of maxillary third molars in adults after orthodontic treatment with premolar extraction using a space coordinate system based on Cone-bean computed tomography (CBCT) images. Methods: Forty-nine maxillary third molars from 27 patients (mean age, 20.78 years) were included in the study. CBCT images were obtained before and after orthodontic treatment with premolars extracted (mean treatment duration, 31.47 months). The changes in the position, angulation, and rotation of the third molars were evaluated with a space coordinates system using four landmarks: anterior nasal spine (ANS), posterior nasal spine (PNS), left and right orbitales. Results: After orthodontic treatment, the third molars moved forward (mean, 1.44 mm) (p < 0.001) and downward (mean, 2.87 mm) (p < 0.001) accompanied by outward rotation (mean, 5.38°) of the crown (p = 0.001), but the changes in angulation were insignificant.Conclusions: This was the first study to systematically investigate the spatial position change of maxillary third molars in adult patients who received orthodontic treatment with premolar extraction. During the process, maxillary third molars moved downward and forward accompanied by outward rotation of the crown.

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