| ORIGINAL ARTICLE |
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| Year : 2014 | Volume
: 2
| Issue : 2 | Page : 97-104 |
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Soft-tissue characteristics of Class II division 2 malocclusion in North Indian adult population: A comparative study
Rana Pratap Maurya1, Vijay Prakash Sharma2, Pradeep Tandon3, Amit Nagar3, Sneh Lata Verma1
1 Department of Orthodontics and Dentofacial Orthopedics, Babu Banarasi Das College of Dental Sciences, Lucknow, India
2 Department of Orthodontics and Dentofacial Orthopedics, Chandra Dental College, Barabanki, Uttar Pradesh, India
3 Department of Orthodontics and Dentofacial Orthopedics, K.G. Medical University, Lucknow, India
Correspondence Address:
Rana Pratap Maurya
Flat No. 204, New Teachers Residential Building, T.G. Campus, Khadra, Lucknow - 226 003, Uttar Pradesh
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/2321-3825.131121
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Aims and Objectives: To evaluate and compare the soft-tissue characteristics associated with Angle's Class-I normal occlusion and Angle's Class-II division-2 malocclusion in North Indian adult population. Materials and Methods: Lateral cephalograms of 70 orthodontically untreated adult subjects, 40 were having normal occlusion (Group-A) with good facial profile (20 males - mean age 22.89 years and 20 females - mean age 21.27 years) and 30 subjects with Angle's Class-II division-2 malocclusion (Group-B) (15 males - mean age 22.50 years and 15 females - mean age 20.25 years) were analyzed. All the cephalograms were taken in natural head position, traced manually and 16 linear and 6 angular soft tissue parameters were measured which were derived from the Steiner, Ricketts, Burstone and Holdaway soft-tissue analyses. All the values were compared using Student's t-test with a level of significance at P < 0·05. Results: Group-B males had significantly higher mean values for lip-line, soft-tissue thickness at labialis inferior (P < 0.05), and total facial contour angle (P < 0.01), whereas, Group-A males had significantly higher values for lower lip-chin length (P < 0.001), lower face height, soft-tissue chin-thickness (P < 0.01) and nasomental angle (P < 0.05). Group-B females had significantly higher values for lip-line (P < 0.05), soft-tissue thickness at labialis superior (P < 0.01), at labialis inferior and mandibular sulcus contour angle (P < 0.05) whereas, Group-A females had significantly higher values for upper lip length, lower lip-chin length (P < 0.01), lower face height (P < 0.001), nose length and lower lip to Sn-Pg' (P < 0.05). There was an apparent sexual dimorphism was found in soft tissue pattern of both the groups. Conclusions: Angle's Class-II division-2 malocclusion subjects have decreased lower lip-chin length and lower face height, while they have an increase lip-line, soft-tissue thickness at labrale superius, soft-tissue thickness at labrale inferius, total facial contour angle and mandibular sulcus contour angle. |
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