PREDICTION OF MANDIBULAR GROWTH POTENTIAL BASED ON CERVICAL VERTEBRAL DIMENSION CHANGES: A STUDY IN A PAKISTANI ADOLESCENT POPULATION
Main Article Content
Keywords
Mandibular length (ML); Bone maturation; Mandibular growth potential; Cervical vertebrae.
Abstract
Objective
To assess the relationship between mandibular growth potential and changes in cephalometric cervical vertebral dimensions in a sample of Pakistani adolescents.
Materials and Methods
A quasi-experimental study was conducted in the Altamash Institute of Dental Medicine in Karachi, Pakistan, from January to June 2021. Lateral cephalograms were performed on 30 subjects (23 females and 7 males, ages 8–18) at two different times. The geometrical dimensions of the third (CV3) and fourth (CV4) cervical vertebral bodies were measured using cephalometric tracings on 8 x 10-inch acetate matte paper. The association between changes in cervical vertebral dimensions and mandibular growth potential was examined using Pearson correlation analysis. Statistical significance was defined as a p-value of less than 0.05.
Results
The mean age of participants was 12.5 ± 2.7 years. Between the initial and final cephalograms, all cervical vertebral dimensions showed a significant change (p < 0.001). There was a weak correlation between mandibular length and cervical vertebral changes in females. Males, on the other hand, showed a moderately positive correlation between the overall height of C4 (H4) and ML, a strong negative correlation between the posterior height of C3 (PH3) and ML, and a strong positive correlation between the anterior height of C4 (AH4) and ML.
Conclusion
A strong correlation between mandibular growth potential and cervical vertebral dimensions was observed among males, suggesting that the Cervical Vertebral Maturation (CVM) method is a valid indicator for determining when and how to plan orthodontic interventions.
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Dr Sakina Kazmi
Senior Registrar, Altamash Institute of Dental Medicine, Karachi, Pakistan
Dr Ambreen Afzal
Professor, Head of the Orthodontic Department and Dean, Altamash Institute of Dental Medicine, Karachi, Pakistan.
Dr Hasnain Sakrani
Professor, Principal, Altamash Institute of Dental Medicine, Karachi, Pakistan
Dr Nabeel Ahmed
Assistant Professor, Department of Endodontics, Altamash Institute of Dental Medicine, Karachi, Pakistan
Dr Bushra Nazeer Khan
Senior Registrar, Department of Orthodontics, Sir Syed College of Medical Sciences, Karachi, Pakistan
Dr Sadaf Siddiqui
Assistant Professor, Department of Orthodontics, Altamash Institute of Dental Medicine, Karachi, Pakistan