A Cephalometric Evaluation of Soft Tissue Following Maxillary Incisors Retraction

2021 ◽  
Vol 15 (12) ◽  
pp. 3147-3149
Author(s):  
Asad ur Rehman ◽  
Amra Minhas Abid ◽  
Ayesha Shafiq ◽  
Saad Saud Farooqui ◽  
Umair Usman
Keyword(s):  
Soft Tissue ◽  
Treatment Plan ◽  
P Value ◽  
Lower Lip ◽  
Pakistani Population ◽  
Premolar Extraction ◽  
Division 1 ◽  
Before And After ◽  
Maxillary Premolars ◽  
Maxillary Incisors

Background: Class 2 Division 1 is the most prevalent type of malocclusion affecting about 32% of Pakistani population. With upper maxillary premolar extraction is one of most frequent treatment choice. Aim: To evaluate the effects of these extractions on soft tissue show variable results depending upon the sex, ethnicity, maxillary arch crowding and pretreatment structure of lips. Methods: In this study pretreatment cephalograms of 106 Class 2 div 1 patients were taken whose treatment plan include extraction of maxillary 1st premolar. Then the second and final cephalograms were taken when retraction of incisors was completed. Mean changes in the position of upper and lower lip were measured with respect to Ricketts E-line before and after completion of retraction of maxillary incisors. Results: After the extraction of premolars there is a significant (P value=0.000) reduction in the lip protrusion of -2.033mm±1.148mm and -1.695mm±1.628mm in both upper and lower lip respectively. Conclusion: Extraction of maxillary premolars cause significant reduction of lip prominence and achieve facial esthetic balance. Keywords: Class 2 div 1, lip position, Premolar Extraction

scholarly journals Soft tissue treatment changes with fixed functional appliances and with maxillary premolar extraction in Class II division 1 malocclusion patients

2017 ◽  
Vol 40 (2) ◽  
pp. 214-222 ◽  
Author(s):  
Guilherme Janson ◽  
Nuria Castello Branco ◽  
Aron Aliaga-Del Castillo ◽  
José Fernando Castanha Henriques ◽  
Juliana Fernandes de Morais
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Premolar Extraction ◽  
Division 1 ◽  
Functional Appliances ◽  
Treatment Changes ◽  
Class Ii Division 1

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 Unpredictability of soft tissue changes after camouflage treatment of Class II division 1 malocclusion with maximum anterior retraction using miniscrews

2016 ◽  
Vol 87 (2) ◽  
pp. 230-238 ◽  
Author(s):  
Kayoung Kim ◽  
Sung-Hwan Choi ◽  
Eun-Hee Choi ◽  
Yoon-Jeong Choi ◽  
Chung-Ju Hwang ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Maxillary Incisor ◽  
Upper Lip ◽  
Lower Lip ◽  
Anterior Teeth ◽  
Division 1 ◽  
Tissue Responses ◽  
Incisor Retraction ◽  
Maximum Group

ABSTRACT Objective: To compare soft and hard tissue responses based on the degree of maxillary incisor retraction using maximum anchorage in patients with Class II division 1 malocclusion. Materials and Methods: This retrospective study sample was divided into moderate retraction (<8.0 mm; n = 28) and maximum retraction (≥8.0 mm; n = 29) groups based on the amount of maxillary incisor retraction after extraction of the maxillary and mandibular first premolars for camouflage treatment. Pre- and posttreatment lateral cephalograms were analyzed. Results: There were 2.3 mm and 3.0 mm of upper and lower lip retraction, respectively, in the moderate group; and 4.0 mm and 5.3 mm, respectively, in the maximum group. In the moderate group, the upper lip was most influenced by posterior movement of the cervical point of the maxillary incisor (β = 0.94). The lower lip was most influenced by posterior movement of B-point (β = 0.84) and the cervical point of the mandibular incisor (β = 0.83). Prediction was difficult in the maximum group; no variable showed a significant influence on upper lip changes. The lower lip was highly influenced by posterior movement of the cervical point of the maxillary incisor (β = 0.50), but this correlation was weak in the maximum group. Conclusions: Posterior movement of the cervical point of the anterior teeth is necessary for increased lip retraction. However, periodic evaluation of the lip profile is needed during maximum retraction of the anterior teeth because of limitations in predicting soft tissue responses.

Soft-tissue treatment changes in Class II Division 1 malocclusion with and without extraction of maxillary premolars

2007 ◽  
Vol 132 (6) ◽  
pp. 729.e1-729.e8 ◽  
Author(s):  
Guilherme Janson ◽  
Acácio Fuziy ◽  
Marcos Roberto de Freitas ◽  
José Fernando Castanha Henriques ◽  
Renato Rodrigues de Almeida
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Division 1 ◽  
Maxillary Premolars ◽  
Treatment Changes ◽  
Class Ii Division 1

scholarly journals Evaluation of soft tissue changes around the lips after bracket debonding using three-dimensional stereophotogrammetry

2015 ◽  
Vol 85 (5) ◽  
pp. 833-840 ◽  
Author(s):  
Young-Kyun Kim ◽  
Nam-Ki Lee ◽  
Sang-Woon Moon ◽  
Moon-Jung Jang ◽  
Hyun-Suk Kim ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Three Dimensional ◽  
Facial Soft Tissue ◽  
Orthodontic Bracket ◽  
Lower Lip ◽  
Before And After ◽  
Tissue Changes ◽  
Orthodontic Patients ◽  
Soft Tissue Changes ◽  
Facial Images

ABSTRACT Objective:  To evaluate the changes in soft tissue around the lips after orthodontic bracket debonding using three-dimensional (3-D) stereophotogrammetry. Materials and Methods:  3-D facial images of 20 subjects (10 men and 10 women; mean age, 26.81 ± 7.23 years) were taken with a white light scanner before and after debonding the labial brackets. Two images acquired from each subject were superimposed, and 15 soft tissue landmarks around the lips were plotted and analyzed. Statistical analysis was performed using both paired and independent t-tests (P < .05). Results:  There were no significant changes in position of any landmark on the x (left-right)- or y (vertical)-axes after removal of the brackets. However, the landmarks in the oral commissures and lower lip (LLP, −0.55 mm; Li, −0.44 mm; Ch-L, −0.56 mm, all P < .05) on the z (anteroposterior)-axis showed statistically significant differences. There were no significant positional changes of most landmarks on the x-, y-, or z- axes after bracket removal among the various genders and lip thicknesses. Conclusions:  There was a slight retrusion in the oral commissure and lower lip areas after debonding, but no changes were found in the upper lip area. This study showed that 3-D stereophotogrammetry can be useful in evaluating facial soft tissue changes in orthodontic patients.

scholarly journals The Assessment of Fixed Orthodontic Treatment Successfulness Using American Board of Orthodontics System in Airlangga University Dental Hospital

2021 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
I Gusti Aju Wahju Ardani ◽  
Dimas Iman Nugroho ◽  
Fakhma Zakki Ramadhani ◽  
Ida Bagus Narmada
Keyword(s):  
Soft Tissue ◽  
Orthodontic Treatment ◽  
Class Ii ◽  
Class I ◽  
Orthodontic Appliances ◽  
Treatment Needs ◽  
Lower Lip ◽  
Skeletal Malocclusion ◽  
Before And After ◽  
Dental Hospital

Background: The purpose of orthodontic treatment is to improve efficient function, tissue balance, and obtain harmonious facial aesthetic results so the successfulness of orthodontic treatment should be comprehensive because maloclusion can occur in dentoalveolar, skeletal and soft tissue tissues. Purpose: This study aims to evaluate the successfulness of orthodontic treatment using fixed orthodontic appliances in Orthodontic Clinic Dental Hospital, Faculty of Dental Medicine Universitas Airlangga by means of ABO system. Methods: Descriptive analytic by comparing the data before and after treatment, then the sample was divided into 3 based on the skeletal malocclusion group. Dental efficacy was measured using the ABO system and the Bolton anterior ratio. Skeletal success by looking at ANB, FHI, and proportion of anterior facial height (UAFH: LAFH). Meanwhile, the success of the soft tissue was by seeing the changes in the aesthetic lines of the upper and lower lips. The statistics used in this study were Kruskal-Whallis for the ABO DI and OGS difference test, Spearman to determine the relationship between ABO DI and OGS measurement components and McNemar and Wilcoxon to determine the difference before and after treatment on all measurements. Results: Treatment of class I skeletal malocclusion had the best mean ABO OGS score. Class II and III treatments had significant treatment advancements. In other measurements, there are significant differences after treatment at FHI in class I, (UAFH: LAFH) in class II and lower lip esthetic line in class II. Conclusion: Generally, the successfulness of orthodontic treatment in Orthodontic Clinic Dental Hospital, Faculty of Dental Medicine, Universitas Airlangga was adequate. In addition, the assessment of the successful orthodontic treatment needs to be adjusted to the standard values that can be accepted by a certain population, especially the Javanese population.

scholarly journals The Effect of Premolar Extraction on Tooth Size Discrepancies of the Patients Treated in Orthodontic Department at BSMMU

2018 ◽  
pp. 13-16
Author(s):  
Nabila Anwar ◽  
Gazi Shamim Hasan
Keyword(s):  
Treatment Plan ◽  
Cross Sectional Study ◽  
Class I ◽  
Tooth Size ◽  
Cross Sectional ◽  
Premolar Extraction ◽  
Before And After ◽  
Size Discrepancy ◽  
Tooth Size Discrepancy ◽  
Overall Ratio

Aims: The present cross sectional study was carried out to investigate the effect of first premolar extraction on tooth size discrepancies (TSD) in an orthodontic population seeking treatment at orthodontic department, BSMMU.Material and methods: Mesiodistal tooth widths were measured on 50 pair of pretreatment and post treatment dental casts of subjects with Class I variation – Class I with bimaxillary proclination, and Class I crowding. The overall ratios and tooth-size discrepancies were determined before and after 1st premolar extractions. Before and after extractions, the subjects were divided into Bolton small (BS), Bolton normal (BN) and Bolton large (BL) overall ratio groups categorized by the Bolton standard deviation definition.Results: The Bolton overall ratio after 1st premolar extraction was smaller than those before extraction in each group. Some of the patients in the BN group and BB group were moved into the BS group and BN group respectively after 1st premolar extraction. A tooth size discrepancy occurred in some patients with normal overall ratios  after premolar extractions, but a tooth size discrepancy might be corrected in some patients with big overall ratios  after premolar extraction.Conclusion: Orthodontists should take into account the following when devising a treatment plan for premolar extractions, overall ratios might decrease and remain normal, and clinically significant tooth-size discrepancies could change mutually after extractions.Ban J Orthod & Dentofac Orthop, April 2015; Vol-5 (1-2), P.13-16

scholarly journals Effects of mandibular protraction appliance associated to fixed appliance in adults

2013 ◽  
Vol 18 (5) ◽  
pp. 46-52 ◽  
Author(s):  
Bruno D'Aurea Furquim ◽  
José Fernando Castanha Henriques ◽  
Guilherme Janson ◽  
Danilo Furquim Siqueira ◽  
Laurindo Zanco Furquim
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
T Test ◽  
Adult Patients ◽  
Class Ii Malocclusion ◽  
Fixed Appliance ◽  
Facial Height ◽  
Nasolabial Angle ◽  
Division 1 ◽  
Before And After

OBJECTIVE: This retrospective study aimed to conduct a cephalometric evaluation of the skeletal, dental and soft tissue effects resulting from treatment of adult patients presenting Class II malocclusion, performed with a Mandibular Protraction Appliance (MPA) combined with a fixed orthodontic appliance. METHODS: The sample consisted of teleradiographs obtained before and after treatment of 9 adult patients (initial mean age of 22.48 years) with bilateral Class II, division 1, malocclusion. Paired t test (p < 0.05) was applied to compare initial and final values. RESULTS: t test revealed an increase in anteroinferior facial height and posterior facial height. The dental changes include: extrusion of upper incisors, buccal inclination, protrusion of lower incisors, mesialization and extrusion of mandibular molars. Regarding the soft tissue component, there was an increase in nasolabial angle in addition to upper lip retrusion. CONCLUSIONS: The effects of treating Class II malocclusion adult patients, by means of using Mandibular Protraction Appliance (MPA) combined with a fixed appliance were mostly observed in the mandibular arch, and consisted of buccal inclination, protrusion and intrusion of incisors, and mesialization and extrusion of the molars.

scholarly journals Incisal and Soft Tissue Effects of Maxillary Premolar Extraction in Class II Treatment

2007 ◽  
Vol 77 (5) ◽  
pp. 808-816 ◽  
Author(s):  
Nevenka Tadic ◽  
Michael G. Woods
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Individual Response ◽  
Lower Lip ◽  
Fixed Appliance ◽  
Premolar Extraction ◽  
Class Ii Treatment ◽  
Nasolabial Angle ◽  
Lateral Cephalograms ◽  
Wide Range

Abstract Objective: This retrospective study was designed to show likely upper incisal and soft tissue lip changes accompanying Class II fixed appliance treatment with only two upper premolar extractions and to assess whether the lips, especially, are predictably and directly affected with such treatment. Materials and Methods: Pretreatment and posttreatment lateral cephalograms and study casts from 61 growing Class II patients (aged 11 to 18 years; 39 division 1 and 22 division 2) were assessed. Upper and lower lip curve depths, nasolabial angle, and upper incisal position and angulation were all assessed and compared with changes in other cephalometric variables. Results: A wide range of individual response in both lip and upper incisor behavior were noted. The observed soft tissue lip changes were most likely to be related to the preexisting morphology of the lips themselves, while upper incisal changes were mainly related to their own pretreatment positions and changes occurring with treatment in the underlying bony structures. Conclusion: Orthodontic treatment involving the extractions of only two upper premolars is likely to result in a wide range of variation in lip and upper incisor behavior. The preexisting soft tissue morphology is likely to be the greatest determinant of lip behavior.

scholarly journals Analysis of soft tissue thickness in persons with malocclusions of class II division 1 and class II division 2

2012 ◽  
Vol 140 (7-8) ◽  
pp. 412-418
Author(s):  
Tatjana Tanic ◽  
Zorica Blazej ◽  
Vladimir Mitic
Keyword(s):  
Soft Tissue ◽  
Profile Analysis ◽  
Class Ii ◽  
Upper Lip ◽  
Facial Soft Tissue ◽  
Lower Lip ◽  
Soft Tissue Profile ◽  
Division 1 ◽  
Division 2 ◽  
Class Ii Division 1

Introduction. Different malocclusions indicate different thickness of facial soft tissue. Objective. The aim of the study was to establish the differences in the thickness of facial soft tissue profile in persons with dentoskeletal Class II/1 and II/2 relationship. Methods. In the study we used cephalometric rendgenograms profile analysis of 60 patients aged 12-18 years of the Dental Clinic in Nis who had not previously undergone orthodontical treatment. According to the dentoskeletal jaws relations the patients were divided into two groups with Class II division 1 and Class II class division 2. In all of them the standard dentoskeletal profile analysis by Steiner and soft tissue profile analysis by Burston was done. The obtained findings were statistically analyzed and the comparison between the studied groups was performed. Results. The results indicated the following: in the patients with Class II/1 relationship there was a significantly thinner upper lip (t=5.741; p<0.0001), thinner upper lip sulcus (t=3.858; p<0.001) and significantly thinner lower lip (t=2.009; p<0.05) in relation to the patients with Class II/2. Compensatory effect in the Class II/1 patients was more distinctive in females, as their soft tissue profiles were thicker. In Class II/2 patients this relationship was in favor of males. Conclusion. The facial soft tissue profile indicated significant differences in the thickness dependant on the type of malocclusion and gender. Because of their great variability and a significant participation in the formation of the profile, while planning orthodontic therapy, it is necessary to pay them full attention, with obligatory analysis of the dentoskeletal profile.

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