scholarly journals Growth changes in the soft tissue facial profile

1991 ◽  
Vol 17 (1) ◽  
pp. 10-21
Author(s):  
Ram Nanda ◽  
◽  
Hanspeter Meng ◽  
Sunil Kapila ◽  
Jolande Goorhuis ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Relative Size ◽  
Adult Size ◽  
Upper Lip ◽  
Lower Lip ◽  
Length Growth ◽  
Soft Tissue Thickness ◽  
Soft Tissue Profile ◽  
Growth Changes ◽  
Size At Age

Longitudinal growth changes in the soft tissue profile of 40 caucasians between the ages of 7 and 18 were studied. The sample consisted of 17 males and 23 females who had Class I dentitions and balanced faces at age 7 and 18 years. None of the subjects received any orthodontic treatment. Cephalometric radiographs were available, as a rule, on a yearly basis. Soft tissue thickness, measured at the nose, upper lip, lower lip and chin, as well as the length of the upper and lower lip, all increased by varying amounts over the period of the study. Females acquired more growth as a percentage of their adult size (at age 18) than males in all variables except the angle of inclination of the skeletal chin which increased more in males. The largest increase in relative size was noted in the nose measurements. In males, the nose had not attained adult size even at age 18. Upper lip length growth, on the other hand, in both males and females was complete by the 15th year. The difference between male and female lip length growth was clinically significant; the average aggregate increase in upper and lower lips combined in males was 6.9 millimeters compared to 2.65 millimeters in females. The total gain in thickness at laberale superius was over four times as much in males as in females and continued to increase in males even at age 18. The change in thickness of the soft tissue at pogonion was not large, an average of 2.4 millimeters in males and 1.5 millimeters in females. The major contribution to the anterior growth of the chin was translatory, contributed largely by growth in the skeletal length from pogonion to pterygomaxillary plane.

scholarly journals Soft tissue thickness of face profile conditioning by dento-skeletal anomalies

2011 ◽  
Vol 139 (7-8) ◽  
pp. 439-445
Author(s):  
Tatjana Tanic ◽  
Zorica Blazej ◽  
Vladimir Mitic
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Class Iii ◽  
Upper Lip ◽  
Tissue Thickness ◽  
Facial Soft Tissue ◽  
Lower Lip ◽  
Skeletal Anomalies ◽  
Soft Tissue Thickness ◽  
Soft Tissue Profile

Introduction. Orthodontic treatment of dento-skeletal anomalies is generally based on the correction of teeth and jaws relationship, while it is expected that soft facial tissue spontaneously adapts to therapeutically achieved relationship and to accompany hard tissue changes. Objective. To establish facial soft tissue thickness conditioning by the presence of dento-skeletal anomalies. Methods. The study was performed at the Dental Clinic of Nis, and involved the analysis of cephalometric rendgenograms in 121 patients, aged 12-18 years, with no previous orthodontical treatment. According to dento-skeletal relationship between teeth and jaws the patients were divided into four groups; class I (control group), class II of division 1, class II of division 2 and class III. The standard analysis of dento-skeletal profile was done according to Steiner and soft tissue profile according to Burstone was done in all. Results. The patients of class II/1 had a significantly thinner upper lip (t=2.650; p<0.05) and thinner upper lip sulcus (t=1.999; p<0.05). The patients of class II/2 had a significantly thicker upper lip (t=2.912; p<0.01), while those of class III had a significantly thinner lower lip (t=3.900; p<0.001). Conclusion. The thickness of facial soft tissue considerably influences facial profile appearance in persons with a dento-skeletal anomaly. Not only do soft tissues adapt to the existing jaws relationship, but can also camouflage present anomalies.

scholarly journals Validity of a Manual Soft Tissue Profile Prediction Method Following Mandibular Setback Osteotomy

2007 ◽  
Vol 01 (04) ◽  
pp. 202-211 ◽  
Author(s):  
Olga - Elpis Kolokitha
Keyword(s):  
Soft Tissue ◽  
Prediction Method ◽  
Prediction Methods ◽  
Upper Lip ◽  
Lower Lip ◽  
Mandibular Prognathism ◽  
Manual Method ◽  
Mandibular Setback ◽  
Soft Tissue Profile ◽  
Lateral Cephalograms

ABSTRACTObjectives: The aim of this study was to determine the validity of a manual cephalometric method used for predicting the post-operative soft tissue profiles of patients who underwent mandibular setback surgery and compare it to a computerized cephalometric prediction method (Dentofacial Planner). Lateral cephalograms of 18 adults with mandibular prognathism taken at the end of presurgical orthodontics and approximately one year after surgery were used.Methods: To test the validity of the manual method the prediction tracings were compared to the actual post-operative tracings. The Dentofacial Planner software was used to develop the computerized post-surgical prediction tracings. Both manual and computerized prediction printouts were analyzed by using the cephalometric system PORDIOS. Statistical analysis was performed by means of t-test.Results: Comparison between manual prediction tracings and the actual post-operative profile showed that the manual method results in more convex soft tissue profiles; the upper lip was found in a more prominent position, upper lip thickness was increased and, the mandible and lower lip were found in a less posterior position than that of the actual profiles. Comparison between computerized and manual prediction methods showed that in the manual method upper lip thickness was increased, the upper lip was found in a more anterior position and the lower anterior facial height was increased as compared to the computerized prediction method.Conclusions: Cephalometric simulation of post-operative soft tissue profile following orthodonticsurgical management of mandibular prognathism imposes certain limitations related to the methods implied. However, both manual and computerized prediction methods remain a useful tool for patient communication. (Eur J Dent 2007;1:202-211)

scholarly journals Analysis of soft tissue facial profiles of Chinese students at W.R. Supratman 1 and 2 high schools in Medan using linear and angular measurements

2021 ◽  
Vol 54 (3) ◽  
pp. 132
Author(s):  
Hilda Fitria Lubis ◽  
Maureen Olivia
Keyword(s):  
High School ◽  
High School Students ◽  
Soft Tissue ◽  
Upper Lip ◽  
School Students ◽  
Lower Lip ◽  
Soft Tissue Profile ◽  
Significant Difference ◽  
Angular Measurements ◽  
Chinese High School Students

Background: Soft tissue analysis is essential in treatment planning to ensure proportional, balanced, and harmonious soft tissue at the end of treatment. Several factors influence the variations, such as age and gender. Soft tissue profile analysis is usually studied from a lateral view. Purpose: The study aimed to determine whether there were differences in the average values of linear and angular measurement of the soft tissue profiles of the middle and lower third of the face between Chinese males and females high school students using lateral photometry. Methods: The samples were 100 lateral photographs (50 male and 50 female) of Chinese high school students at W.R. Supratman 1 and 2 in Medan. All samples were collected based on the inclusion and exclusion criteria obtained from secondary data. The linear and angular measurements were measured using Software Corel Draw 2019 and analysed statistically using an independent t-test and the Mann-Whitney test. Results: The inferior facial third, length of the lower lip, and prominence of the upper lip were, on average, greater in males, whereas in the prominence of pogonion, nasolabial angles, and nasofrontal angles were greater, on average, for females. Conclusion: There were significant gender differences in Chinese high school students in the inferior facial third, length of the lower lip, prominence of the upper lip, nasolabial angle, and nasofrontal angle, whereas there is no significant difference between genders in the prominence of the pogonion.

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.

scholarly journals Lip Dimensions of an Adult Nigerian Population with Normal Occlusion

2012 ◽  
Vol 13 (2) ◽  
pp. 188-193 ◽  
Author(s):  
Gerald Ikenna Isiekwe ◽  
Oluranti Olatokunbo daCosta ◽  
Michael Chukwudi Isiekwe
Keyword(s):  
Sexual Dimorphism ◽  
Soft Tissue ◽  
Treatment Planning ◽  
Upper Lip ◽  
Lower Lip ◽  
Male And Female ◽  
Normal Occlusion ◽  
Soft Tissue Profile ◽  
Nigerian Population ◽  
Female Values

ABSTRACT Introduction The soft tissue paradigm is placing greater emphasis on the importance of the soft tissue profile to orthodontic treatment planning. The purpose of this study was to determine the lip dimensions of a Nigerian adult population; compare the male and female values and to compare the values obtained for Nigerians with those reported for other population. Methodology Lateral cephalometric radiographs of 100 students (44 males and 56 females) of the College of Medicine, University of Lagos, aged 18 to 25 years were taken. Selected subjects were of Nigerian ancestry with normal occlusion and a harmonious facial appearance. The radiographs were manually traced and the upper and lower lip length and thickness of each subject was measured. Statistical analysis was carried out using SPSS, while the male and female values were compared using student's t-tests. Results Mean values for the lip dimensions were computed for the entire sample. Marked sexual dimorphism was observed with the males having thicker and longer upper and lower lips than the females. The Nigerian sample also had a longer upper lip and a thicker and shorter lower lip than that reported for Caucasians. However, both population had a similar upper lip thickness. Conclusion Cephalometric norms were developed for the lip dimensions of a Nigerian population. Marked sexual dimorphism was observed in the Nigerian population studied with the males having longer and thicker lips than the females. The lip dimensions of the Nigerian population studied differed from that reported for Caucasians and other racial groups. Clinical significance The lip dimensions established in this study would aid in orthodontic and orthognathic surgery treatment planning for Nigerians. Furthermore, due to the marked sexual dimorphism observed in the Nigerian population studied, gender specific and not generalized norms should be used. How to cite this article Isiekwe GI, daCosta OO, Isiekwe MC. Lip Dimensions of an Adult Nigerian Population with Normal Occlusion. J Contemp Dent Pract 2012;13(2):188-193.

scholarly journals Perubahan profil jaringan lunak bibir sebelum dan setelah perawatan ekspansi lengkung gigi menggunakan alat ortodonti lepasanChanges of the lip soft tissue profile before and after dental arch expansion treatment using removable orthodontic appliances

2021 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Araminta Nariswari Candraningtyas ◽  
Iwa Rahmat Sunaryo ◽  
Avi Laviana
Keyword(s):  
Soft Tissue ◽  
Dental Arch ◽  
Orthodontic Appliances ◽  
Upper Lip ◽  
Orthodontic Appliance ◽  
Lower Lip ◽  
Nasolabial Angle ◽  
Soft Tissue Profile ◽  
Before And After ◽  
Removable Orthodontic Appliances

ABSTRAK Pendahuluan: Penggunaan alat ortodonti lepasan dengan sekrup ekspansi bertujuan untuk memperoleh ruangan pada kasus gigi berjejal dengan cara melebarkan lengkung gigi. Pergerakan gigi yang dihasilkan dapat berpengaruh pada salah satu komponen estetika wajah yaitu profil jaringan lunak. Tujuan penelitian ini untuk mengevaluasi perubahan profil jaringan lunak bibir sebelum dan setelah  perawatan ekspansi lengkung gigi menggunakan alat ortodonti lepasan. Metode: Jenis penelitian ini adalah deskriptif analitik menggunakan metode purposive sampling pada subjek yang merupakan pasien ortodonti di Klinik Profesi Dokter Gigi RSGM Unpad yang dirawat menggunakan alat lepasan akrilik dengan sekrup ekspansi lateral maksila dan mandibula. Terdapat 4 subjek yang memenuhi kriteria inklusi yaitu sepuluh kali aktivasi yang dilakukan setiap minggu dalam waktu tiga bulan.  Subjek dilakukan foto lateral wajah dengan posisi standar sebelum dan setelah aktivasi. Pengukuran dilakukan menggunakan jangka sorong digital dari bibir atas (Ls) terhadap E-line (Ns-Pog), bibir bawah (Li) terhadap E-line (Ns-Pog), dan busur derajat digital untuk mengukur sudut nasolabial(Ns-Sn-Ls). Hasil dan Pembahasan: Nilai rerata perubahan jarak bibir atas terhadap E-line yaitu 0,59 mm, nilai rerata perubahan jarak bibir bawah terhadap E-line yaitu 0,63 mm dan nilai rerata perubahan sudut nasolabial yaitu -2,03o. Penelitian ini menunjukkan adanya perubahan posisi bibir  menjadi lebih ke anterior setelah dilakukan aktivasi sekrup ekspansi lateral rahang atas dan rahang bawah sebanyak 10 kali. Simpulan: Hasil penelitian menunjukkan adanya perbedaan yaitu  posisi bibir atas dan bibir bawah yang menjadi lebih ke anterior dan tidak terdapat perbedaan pada sudut nasolabial setelah dilakukan 10 kali aktivasi sekrup ekspansi lateral pada alat ortodonti lepasan.Kata kunci: perbedaan profil jaringan lunak; alat ortodonti lepasan; ekspansi lengkung gigi; sekrup ekspansi. ABSTRACT Introduction: The use of removable orthodontic appliance with expansion screws aim to gain a space in crowding teeth by expanding the dental arch. The resulting tooth movement can affect one of the aesthetic components of the face, the  soft tissue profile. The aim of this study to evaluate the change of lip soft tissue profile before and after treatment of dental arch expansion using removable orthodontic appliance. Method: The research method used is descriptive analysis and purposive sampling in patients of Rumah Sakit Gigi dan Mulut Universitas Padjadjaran’s Orthodontic Clinic treated by using removable appliance with lateral expansion screw in maxilla and mandible. There are 4 patients who meet the inclusion, namely the srew is activated 10 times, once every week in 3 months. Subjects photographed in lateral position before and after activation. Measurement is done by using a calipers from upper lip to E-line, lower lip to E-line, and nasolabial angle using a digital protractor. Results and Discussion: The average of the changes in upper lip to E-line distance are 0,59 mm, the average of the changes in lower lip to E-line distance are 0,63 mm, and the average of the changes in nasolabial angle are -2,03o . This study showed a lip position that became more anterior after 10 times the activation of the maxillary and mandibular expansion screws. Conclusions: The results showed a difference in the position of the upper lip and lower lip which became more anterior and there is no difference in nasolabial angle after 10 times the activation of lateral screws in removable appliances.Keywords: soft tissue profile differences; removable orthodontic appliances; dental arch expansion;  expansion screws.

scholarly journals Angular Photogrammetric Soft Tissue Facial Profile Analysis of Bangladeshi Young Adults

2017 ◽  
Vol 7 ◽  
pp. 279-286
Author(s):  
Lubna Akter ◽  
Md. Zakir Hossain
Keyword(s):  
Young Adults ◽  
Soft Tissue ◽  
Profile Analysis ◽  
Mean Value ◽  
Upper Lip ◽  
Cross Sectional ◽  
Lower Lip ◽  
Facial Profile ◽  
Nasolabial Angle ◽  
Soft Tissue Profile

Introduction Angular photogrammetric soft tissue facial profile analysis provides a permanent record for the actual appearance of a person, which would also serve to establish an ideal esthetic treatment goal. The aim of the present study was to evaluate the average angular variables that define the soft tissue facial profile of a Bangladeshi sample. Materials and Methods This cross-sectional study was carried out at Department of Orthodontics and Dentofacial Orthopedics of Dhaka Dental College and Hospital, Bangladesh, from July to December 2015. Soft tissue facial profiles of 200 participants (100 males and 100 females) between 18 and 25 years of age, with a dental Class I occlusal relationship and harmonious soft tissue profile, were selected by convenience sampling among students, doctors, and patients of Dhaka Dental College. Standardized photographs of 200 samples were taken in the natural head position. The photographic records were analyzed with the software for Windows, Microsoft Visio 2007, Standard Edition. All data were analyzed through standard methods using Statistical Package for the Statistical Package for Social Science Software (SPSS Version-20, IBM Corp, USA). Results The average angular measurements for nasofrontal, total facial angle, facial angle, upper lip angle, projection of lower lip to chin, and mentolabial angle were wider in females. The mean value for nose tip angle, nasolabial angle, nasomental angle, and projection of upper lip to chin angle was higher in males compared to females. Nasofrontal angle (G-N-Nd) (P = 0.000) and mentolabial angle (Li-Sm-Pg) (P = 0.001) showed statistically significant differences. The greatest variability was found for mentolabial angle. Conclusion The study of angular photogrammetric soft tissue facial profile analysis of Bangladeshi young adults contributes to the establishment of standardized normal values for the population. This study provides data which can be used in treatment planning by specialists such as orthodontists, prosthodontists, plastic surgeons, and maxillofacial surgeons, who have the capability to change the soft tissue facial features.

Soft-Tissue Profile Changes during Widening and Protraction of the Maxilla in Patients with Cleft Lip and Palate Compared with Normal Growth and Development

1993 ◽  
Vol 30 (5) ◽  
pp. 454-468 ◽  
Author(s):  
Rolf S. Tindlund ◽  
Per Rygh
Keyword(s):  
Soft Tissue ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Lower Lip ◽  
Maxillary Protraction ◽  
Transverse Expansion ◽  
Short Period ◽  
Soft Tissue Profile ◽  
Lateral Cephalograms ◽  
Maxillary Deficiency

During the last 15 years, cleft lip and palate (CLP) patients with maxillary deficiency in the care of the Bergen CLP team have undergone an interceptive orthopedic treatment phase during the deciduous and mixed dentition period. The present study includes 68 patients who received maxillary transverse expansion by use of a modified quad-helix appliance and 98 cases given maxillary protraction by a facial mask. All cases were treated until an acceptable normal occlusion was attained. Lateral cephalograms were taken immediately before and after the active treatment periods. Sagittal changes of the soft-tissue profile during transverse expansion and protraction were analyzed separately for unilateral complete cleft lip and palate (UCLP) patients and bilateral complete cleft lip and palate (BCLP) patients. The soft-tissue profiles of the groups were compared to growth changes of noncleft age-matched children (NORM group). During the short period of maxillary transverse expansion (mean period, 3.5 months) no significant change of the soft-tissue profile was found, except in the protrusion of the lower lip in the BCLP group. During the period of maxillary protraction (mean periods, 12 months in the UCLP group and 15 months in the BCLP group) the soft-tissue profile improved significantly by reducing the characteristic tendency towards a concave profile in CLP patients with maxillary deficiency. Significant Increases of the sagittal maxillomandlbular lip relation (angle SS-N-SM: mean Increase, 2.5 degrees) and the Holdaway-angle (H-angle: mean increase, 3.0 degrees) were found to be similar in the UCLP and BCLP groups. However, the use of different reference lines for evaluation of treatment effects upon the soft-tissue profile resulted in conflicting findings suggesting that anteriorly situated reference lines are more suitable for the evaluation of CLP patients. Thus, the esthetic line (E.line) indicated a favorable position of the lips after treatment; the subspinale-pogonlon line (ss.pg) revealed an Improved soft-tissue profile; the soft-tissue-facial line (N.PG) showed a retruded nose and upper lip; whereas basal references such as the nasion-sella line (NSL) and the occlusal-line perpendicular (OLP) mainly showed major differences between the CLP groups and the NORM groups.

Cephalometric Soft Tissue Profile Analysis Between Two Different Ethnic Groups: A Comparative Study

2003 ◽  
Vol 4 (2) ◽  
pp. 60-73 ◽  
Author(s):  
Hayder Abdallah Hashim ◽  
Sahar F. Albarakati
Keyword(s):  
Soft Tissue ◽  
Comparative Study ◽  
Ethnic Groups ◽  
Profile Analysis ◽  
Plane Angle ◽  
Lower Lip ◽  
Nasal Tip ◽  
Caucasian Americans ◽  
Soft Tissue Profile ◽  
Facial Plane

Abstract The aim of this investigation was to study and compare the cephalometric soft tissue profile analysis between Saudis and Caucasian Americans. The study was carried out using standardized cephalometric radiographs of 56 Saudi subjects (30 males and 26 females) with pleasant and balanced facial profiles, competent lips, normal overjet and overbite, and showing no craniofacial deformities. Subject ages ranged from 22 to 23 years. One skeletal and thirteen soft tissue variables were investigated. F-test, two samples t-test, Mann-Whitney, and Wilcoxon tests were used for data analysis. The results showed no statistical significant differences between the Saudi males and females except for the angle of total facial convexity, soft tissue facial plane angle, lower lip length, sagittal nasal tip to the most protrusive lip distance, and also sagittal chin to the most protrusive lip distance. The Saudi females had a greater angle of total facial convexity and soft tissue facial plane angle than the males. In addition, the females had a shorter lower lip. They also had a short distance between the nasal tip and chin to the most protrusive lip. These results reveal significant differences in most of the soft tissue variables when comparing Saudis with Caucasian Americans as well as in other ethnic groups. Most of these variables are essential for the diagnosis and treatment planning of cases requiring orthodontics and orthognathic surgery. Citation Hashim HA, AlBarakati SF. Cephalometric Soft Tissue Profile Analysis Between Two Different Ethnic Groups: A Comparative Study. J Contemp Dent Pract 2003 May;(4)2:060-073.

scholarly journals Long-term evaluation of Class II subdivision treatment with unilateral maxillary first molar extraction

2014 ◽  
Vol 85 (5) ◽  
pp. 757-763 ◽  
Author(s):  
Christos Livas ◽  
Nikolaos Pandis ◽  
Johan Willem Booij ◽  
Christos Katsaros ◽  
Yijin Ren
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Long Term Effects ◽  
Similar Time ◽  
Lower Lip ◽  
Soft Tissue Profile ◽  
The Face ◽  
Molar Extraction

ABSTRACT Objective:  To evaluate the long-term effects of asymmetrical maxillary first molar (M1) extraction in Class II subdivision treatment. Materials and Methods:  Records of 20 Class II subdivision whites (7 boys, 13 girls; mean age, 13.0 years; SD, 1.7 years) consecutively treated with the Begg technique and M1 extraction, and 15 untreated asymmetrical Class II adolescents (4 boys, 11 girls; mean age, 12.2 years; SD, 1.3 years) were examined in this study. Cephalometric analysis and PAR assessment were carried out before treatment (T1), after treatment (T2), and on average 2.5 years posttreatment (T3) for the treatment group, and at similar time points and average follow-up of 1.8 years for the controls. Results:  The adjusted analysis indicated that the maxillary incisors were 2.3 mm more retracted in relation to A-Pog between T1 and T3 (β  =  2.31; 95% CI; 0.76, 3.87), whereas the mandibular incisors were 1.3 mm more protracted (β  =  1.34; 95% CI; 0.09, 2.59), and 5.9° more proclined to the mandibular plane (β  =  5.92; 95% CI; 1.43, 10.41) compared with controls. The lower lip appeared 1.4 mm more protrusive relative to the subnasale-soft tissue-Pog line throughout the observation period in the treated adolescents (β  =  1.43; 95% CI; 0.18, 2.67). There was a significant PAR score reduction over the entire follow-up period in the molar extraction group (β  =  −6.73; 95% CI; −10.7, −2.7). At T2, 65% of the subjects had maxillary midlines perfectly aligned with the face. Conclusions:  Unilateral M1 extraction in asymmetrical Class II cases may lead to favorable occlusal outcomes in the long term without harming the midline esthetics and soft tissue profile.

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