ORIGINAL ARTICLE
Year : 2013  |  Volume : 4  |  Issue : 1  |  Page : 74-80

A comparison between cervical vertebrae and modified MP3 stages for the assessment of skeletal maturity


1 Department of Orthodontics and Dentofacial Orthopedics, Narayana Dental College and Hospital, Chinthareddypalem, Nellore, India
2 Department of Orthodontics and Dentofacial Orthopedics, St. Joseph Dental College, Eluru, Andhra Pradesh, India
3 Department of Orthodontics, Govt. Dental College, Thiruvananthapuram, Kerala, India
4 Department of Orthodontics ,KVG Dental College, Sullia, Karnataka, India

Correspondence Address:
Mandava Prasad
Department of Orthodontics and Dentofacial Orthopedics, Narayana Dental College and Hospital, Chinthareddypalem, Nellore, Andhra Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0976-9668.107264

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Objective: Evaluation of skeletal maturity in human individuals is an important aspect in orthodontics and dentofacial orthopedics because, growth guidance and fundamental structural changes are essential for treatment of skeletal discrepancies in all the three planes. Among various growth assessment methods, cervical vertebra maturation stages and hand wrist have been correlated with the individual growth changes during puberty. The purpose of this study is to determine correlation of the CVM index with the modified median phalanx index (MP3) as described by Rajagopal and Kansal. Materials and Methods: 200 subjects (100 males and 100 females) of Nellore, Indian origin boys aged between 10 to 19 years and girls of 8 to 16 years were selected for the study. The subjects are selected randomly from patients visiting the Departments of Orthodontics and Dentofacial Orthopedics, Pediatric dentistry and Oral medicine and Radiology at Narayana Dental College and Hospital. Nellore. Radiographs of left hand MP3 and lateral cephalogram were taken. Results: Cohen's kappa statistic was used to assess the agreement between the two measurements based on categorical variables. Conclusions: There was a good concordance between 6 stages of CVMI (Hassel and Farman) and the 6 stages of MP3 (Rajagopal and Kansal). Physiological maturity was earlier in females than in males when compared to the individuals of opposite sex of same chronological age. Chronological age was not a valid predictor of assessing the skeletal maturity because of significant variations in the distribution of CVMI and MP3 stages with respect to individual chronological age distribution.


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