Correlation of Lower Third Molar Angulation and Posterior Space Discrepancy with Mandibular Anterior Crowding using 3d Intra Oral Scanner

Ayesha Iftikhar; Tayyaba Jahanzeb

doi:10.37762/jgmds.8-3.194

Authors

Ayesha Iftikhar RCD, Peshawar
Tayyaba Jahanzeb Rehman College of Dentistry, Peshawar

DOI:

https://doi.org/10.37762/jgmds.8-3.194

Keywords:

Intraoral Scanner, Little’s Irregularity Index, Ganss Ratio, Digital Models

Abstract

OBJECTIVES:

To objectively determine the correlation of lower third molar angulation and posterior space discrepancy with mandibular anterior crowding digitally using intraoral scanner.

METHODOLOGY:

Cross sectional analytical study conducted at Rehman College of Dentistry (RCD) Peshawar from15^th November 2020 till 15^th December 2020. Lower third molar angulation and posterior space discrepancy were measured by IC 3.1 measure software, using digital Orthopantomograms (OPG). Digitally scanned models by (CS 3600 intraoral scanner) were analyzed using (CS 3600 3D software). Sample was divided into Control (N=30; perfect alignment), Experimental (N=30; crowding >1mm) groups, based on Little’s Irregularity Index. Both lower third molar angulation and posterior space discrepancy (Ganss Ratio) were correlated with lower anterior crowding using Pearson’s Correlation. To determine any difference between two groups independent t-test was used.

RESULTS:

Statistically insignificant difference and a weak correlation were found for Ganss ratio and third molar angulation in both control and experimental groups.

CONCLUSION:

Third molar angulation and the retro molar space has no direct effect on the lower anterior crowding.

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Author Biographies

Ayesha Iftikhar, RCD, Peshawar

Assistant Professor, Department of Orthodontics,

Rehman College of Dentistry, Peshawar

Tayyaba Jahanzeb, Rehman College of Dentistry, Peshawar

Training Medical Officer, Department of Orthodontics,

Rehman College of Dentistry, Peshawar

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