Long-term Evaluation of Treated Class II Division 1 Malocclusions Utilizing the PAR Index

1995 ◽  
Vol 22 (2) ◽  
pp. 171-178 ◽  
Author(s):  
O. D. Otuyemi ◽  
S. P. Jones
Keyword(s):  
Class Ii ◽  
Post Treatment ◽  
Anterior Crowding ◽  
Treatment Standard ◽  
Par Index ◽  
Division 1 ◽  
Term Evaluation ◽  
High Treatment ◽  
Class Ii Division 1

The PAR Index was used to evaluate treatment and long-term post-retention results obtained from 50 Class II division 1 malocclusions. Dental casts were used to record the occlusions pre- and post-treatment as well as 1 and 10 years post-retention. The results suggested a high treatment standard, as indicated by mean percentage PAR score reduction. However, maintenance of post-treatment results 1 and 10 years post-retention was only achieved in 60 and 38 per cent of cases, respectively. The major factor involved in this deterioration appeared to be late lower anterior crowding.

scholarly journals Class II Division 1 malocclusion treatment with extraction of maxillary first molars: Evaluation of treatment and post‐treatment changes by the PAR Index

2020 ◽  
Author(s):  
Johan W. Booij ◽  
Anne Marie Kuijpers‐Jagtman ◽  
Ewald M. Bronkhorst ◽  
Christos Livas ◽  
Yijin Ren ◽  
...  
Keyword(s):  
Class Ii ◽  
Post Treatment ◽  
Par Index ◽  
Division 1 ◽  
Treatment Changes ◽  
Class Ii Division 1

scholarly journals TADs assisted Camouflage Orthodontic Treatment of Class II Division 1 Malocclusion in a Non Growing Patient: A case report

2018 ◽  
Vol 8 (2) ◽  
pp. 55-59
Author(s):  
Ankita Gupta ◽  
Trilok Shrivastava
Keyword(s):  
Case Report ◽  
Class Ii ◽  
Maxillary Incisor ◽  
Mandibular Incisor ◽  
Anterior Crowding ◽  
Skeletal Class ◽  
Curve Of Spee ◽  
Skeletal Class Ii ◽  
Division 1 ◽  
Class Ii Division 1

Class II, Division I malocclusion has been described as the most frequent treatment problem in orthodontic practice. Aim & objectives of the present case report was to evaluate the management of skeletal Class II division 1 malocclusion in non growing patient with extraction of upper first premolars. Clinical and cephalometric evaluation revealed skeletal Class II with Angles Class II division 1 malocclusion with mild mandibular anterior crowding and increased overjet, severe maxillary incisor proclination, mild mandibular crowding, exaggerated curve of spee, convex profile, incompetent lips, increased overjet and overbite. Maxillary first premolars were extracted followed by en-masse retraction of anteriors with the help of temporary anchorage devices (TADs) to avoid anchorage loss. Mandibular incisor was extracted to correct curve of spee. Following treatment marked improvement in patient’s smile, facial profile and lip competence were achieved and there was a remarkable increase in the patient’s confidence and quality of life.

A long-term statistical study of treated Class II, Division 1 malocclusions

1975 ◽  
Vol 67 (6) ◽  
pp. 697-698
Author(s):  
Peter E. Paulos ◽  
Robert S. Portenga ◽  
Richard D. Seabold
Keyword(s):  
Statistical Study ◽  
Class Ii ◽  
Division 1 ◽  
Class Ii Division 1

scholarly journals Transverse maxillary and mandibular growth during and after Bionator therapy: study with metallic implants

2013 ◽  
Vol 18 (3) ◽  
pp. 72-79
Author(s):  
André da Costa Monini ◽  
Luiz Gonzaga Gandini Júnior ◽  
Luiz Guilherme Martins Maia ◽  
Ary dos Santos-Pinto
Keyword(s):  
Class Ii ◽  
Mandibular Growth ◽  
Metallic Implants ◽  
Division 1 ◽  
Before And After ◽  
Long Term Follow Up ◽  
Maxilla And Mandible ◽  
Class Ii Division 1

INTRODUCTION: This study evaluated posteroanterior cephalograms before and after treatment and long term follow-up of Class II division 1 patients treated with bionator. OBJECTIVE: The objective was to demonstrate the transverse growth of maxilla and mandible during and after bionator therapy. METHODS: Measurement of transverse dimensions between posterior maxillary and mandibular implants, as well as the distances between the buccal, gonial and antegonial points were recorded. Measurements were analyzed at three periods: T1 = before bionator therapy, T2 = after bionator therapy and T3 = 5.74 years after T2. RESULTS: There was statistically significant transverse increase due to growth and/or treatment for all variables, except for the distance between the anterior maxillary implants. CONCLUSIONS: During the study period only the anterior maxillary area did not show transverse growth.

scholarly journals Herbst Treatment of Class II division 1 Malocclusions in Retrognathic and Prognathic Facial Types

2006 ◽  
Vol 76 (6) ◽  
pp. 930-941 ◽  
Author(s):  
Niko Bock ◽  
Hans Pancherz
Keyword(s):  
Class Ii ◽  
Mandibular Growth ◽  
Division 1 ◽  
Term Basis ◽  
Growth Changes ◽  
Subject Material ◽  
Facial Types ◽  
Facial Type ◽  
Class Ii Division 1

Abstract Objective: The aim of this retrospective pilot study was to analyze and compare the short-term and long-term changes of Herbst treatment in Class II division 1 subjects of the retrognathic and prognathic facial type. Materials and Methods: The subject material comprised 10 retrognathic (mean SNA = 74.5°, SNB = 70.4°, ML/NSL = 41.1°) and 16 prognathic (mean SNA = 86.7°, SNB = 81.5°, ML/NSL = 25.1°) Class II division 1 subjects treated with the Herbst appliance for an average period of 7 months. Lateral head films from before (T1), immediately after (T2), 12 months after (T3), and 39 months after (T4) Herbst treatment were analyzed with the SO-analysis (analysis of changes in sagittal occlusion) and standard cephalometrics. Results: During the treatment period (T2–T1) the two facial type groups showed similar favorable changes for all variables. During the posttreatment periods of 12 months (T3–T2) and 39 months (T4–T2) recovering changes occurred. In the long-term, a tendency of more unfavorable growth changes was stronger (not significant) for retrognathic subjects than for prognathic subjects. Conclusion: On a long-term basis, retrognathic subjects are prone to exhibit more unfavorable mandibular growth changes than prognathic subjects and, thus, might exhibit a greater risk for an occlusal relapse when a stable Class I occlusion is not attained after treatment.

Long-term profile attractiveness in Class II Division 1 malocclusion patients treated with and without extractions

2019 ◽  
Vol 155 (3) ◽  
pp. 362-371 ◽  
Author(s):  
Lucas Marzullo Mendes ◽  
Guilherme Janson ◽  
Cintia Helena Zingaretti Junqueira-Mendes ◽  
Daniela Gamba Garib
Keyword(s):  
Class Ii ◽  
Division 1 ◽  
Class Ii Division 1
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