The Relationship Between Maxillary and Mandibular Base Lengths and Dental Crowding in Patients with True Class II Malocclusions

  • Tanzin Palkit
  • Isha Aggarwal
  • Yagyeshwar Malhotra
  • Mandeep Uppal
  • Merry Goyal
  • Neetika Singh
Keywords: Malocclusion, Crowding, Maxilla, Mandible

Abstract

INTRODUCTION: Orthodontists, for a long time have considered that occlusion and facial beauty are so interdependent that they must be equal goals of treatment.
AIM: To validate the relationship between maxillary and mandibular effective lengths and dental crowding in patients with Class II malocclusions.
MATERIALS AND METHOD: A sample of 40 orthodontic patients with complete bilateral Class II malocclusions in the permanent dentition (25 males, 15 females) who were divided into two groups based on severity of pre-treatment mandibular anterior dental crowding. The maxillary and mandibular effective lengths and tooth-arch size discrepancies were measured on the pre-treatment Lateral cephalograms and initial casts, respectively. Intergroup comparisons of apical base lengths were assessed with independent t-tests. Correlation between effective length and dental crowding was assessed by Pearson's correlation coefficient (P <.05).
RESULTS: Subjects with Class II malocclusion and moderate to severe crowding had significantly smaller maxillary and mandibular effective lengths compared with subjects without crowding and with minimal dental crowding. A weak inverse correlation was also found between maxillary and mandibular effective lengths and the severity of dental crowding.
CONCLUSION: In patients with complete Class II malocclusion, decreased maxillary and mandibular effective lengths constitute a significant factor associated with dental crowding.

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Author Biographies

Tanzin Palkit

MDS (Orthodontics and Dentofacial Orthopedics), Senior Lecturer, Department of Orthodontics and Dentofacial Orthopedics, Bhojia Dental College, Baddi, H.P.

Isha Aggarwal

MDS (Orthodontics and Dentofacial Orthopedics), Reader, Department of Orthodontics and Dentofacial Orthopedics, Bhojia Dental College, Baddi, H.P.

Yagyeshwar Malhotra

MDS (Orthodontics and Dentofacial Orthopedics), Consultant Orthodontist, Kangra, HP, India (Corresponding Author)

Mandeep Uppal

MDS (Orthodontics and Dentofacial Orthopedics), Professor, Department of Orthodontics and Dentofacial Orthopedics, Bhojia Dental College, Baddi, H.P.

Merry Goyal

MDS (Orthodontics and Dentofacial Orthopedics), Senior Lecturer, Department of Orthodontics and Dentofacial Orthopedics, Bhojia Dental College, Baddi, H.P.

Neetika Singh

MDS (Pedodontics and Preventive Dentistry), Reader, Department of Pedodontics and Preventive Dentistry, Bhojia Dental College, Baddi, H.P.

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CITATION
DOI: 10.26440/IHRJ/0407.10280
Published: 2020-10-20
How to Cite
1.
Tanzin Palkit, Isha Aggarwal, Yagyeshwar Malhotra, Mandeep Uppal, Merry Goyal, Neetika Singh. The Relationship Between Maxillary and Mandibular Base Lengths and Dental Crowding in Patients with True Class II Malocclusions. IHRJ [Internet]. 2020Oct.20 [cited 2020Dec.2];4(7):OR5-OR9. Available from: https://ihrjournal.com/index.php/ihrj/article/view/280