|Year : 2013 | Volume
| Issue : 1 | Page : 59-60
Comparison of treatment duration in different malocclusions
Parag S Majithia, Rohan Mascarenhas, Akhter Husain
Department of Orthodontics and Dentofacial Orthopedics, Yenepoya Dental College, Mangalore, India
|Date of Web Publication||21-Jun-2013|
Department of Orthodontics and Dentofacial Orthopedics, Yenepoya Dental College, Mangalore
Source of Support: None, Conflict of Interest: None
There has been much debate on duration of orthodontic treatment. Recent clinical trials have attempted to reduce the same. The purpose of this study was to compare the treatment duration of class I, class II, and class III malocclusions. Thirty patients were selected and divided into 3 groups of 10 each according to the malocclusion present, and the treatment time was determined and compared. The mean treatment duration for orthodontic therapy is 19.7 months with least time taken for class III malocclusions followed by class I and maximum time taken for class II malocclusion.
Keywords: Treatment duration, malocclusion
|How to cite this article:|
Majithia PS, Mascarenhas R, Husain A. Comparison of treatment duration in different malocclusions. Arch Med Health Sci 2013;1:59-60
| Introduction|| |
Most patients are concerned about the time required for orthodontic treatment. Timely completion of treatment meets patient and parent expectations, and the ability to accurately predict treatment duration is an essential practice-management skill for all orthodontists. The aim of this study was to assess the duration of treatment (months) of class I, class II, and class III malocclusion patients.
Kurt Popowich  et al, (2006) investigated the relative treatment time difference (months/appointments) between class II division 1 patients and class I patients from 3 different orthodontic offices. Colela et al, (1994) carried out a retrospective study based on the records from the University of Pittsburgh. The mean duration of treatment was 28.7 ± 0.62 months for class II and 24.66 ± 0.83 months for class I cases. Wenger et al, in 1996 found duration of treatment for class I cases was 26 ± 13.4 months, for class II 29.9 ± 12.2 months, and for class III 28 ± 17.0 months.
| Materials and Methods|| |
Thirty patients were selected with permanent dentition undergoing orthodontic treatment. The age group was 18-25 (non-growing) with equal number of male and female patients. Both extraction and non-extraction cases were included. They were divided into class I, class II, and class III skeletal pattern. Treatment time was noted from the day of bonding till the day of debonding the appliance [Table 1], [Table 2] and [Table 3].
ANOVA test was done for statistical analysis. Treatment duration were compared & also comparison was done between class I & class II, class II & class III malocclusions seperately.
Criteria for Selection
- No history of previous orthodontic treatment.
- No missing teeth.
- Patients requiring surgical intervention were not selected.
| Results|| |
Results showed that class II cases took more time and class III cases required least treatment duration. Mean treatment time for orthodontic therapy is 19.7 months [Table 4].
All three groups were compared with each other and showed no statistical significant difference between them [Table 5].
| Discussion|| |
Several studies by qualified orthodontist have reported treatment durations for different malocclusions. However, there are no studies done in a post-graduate teaching department. So, the aim of this investigation was to quantify the results of the treatment duration in class I, class II, and class III skeletal malocclusions in a post-graduate department and to correlate the difference if any. Results showed 19.9 + 3.07 for class I, 20.9 + 5.15 for class II, and 18.3 + 2.45 for class III malocclusion.
Wenger et al. in 1996 found least treatment duration for class I cases followed by class III and maximum duration for class III malocclusion. In this study, we found class III malocclusion took least time followed by class I and maximum time was taken for class II malocclusion.
| References|| |
|1.||Popowich K, Nebbe B, Glover K, Major PW. Predictors for Class II treatment duration. Am J Orthod Dentofacial Orthop 2005;127:293-300. |
|2.||Colela C. Duration of treatment: Class I vs. Class II malocclusions. J Dent Res 1994;73:364. |
|3.||Wenger R, Douangpanya S, Vig K, Beck M, Vig P. Class I, II and III differences in severity, duration and orthodontic results. J Dent Res 1996;75:437. |
[Table 1], [Table 2], [Table 3], [Table 4], [Table 5]