Abstract

The purpose of this study was to evaluate if the absolute change in linear measurements of bone loss on the facial plane of a maxillary central incisor at full and half root length along the vertical axis is directly proportional to volumetric change. The secondary aim was to evaluate if the variation of root volume is influenced by difference in root morphology.

Three dimensional digital models of 70 random patients were obtained from

DICOM CBCT files using volumetric software, InVivoDental (Anatomage, San Jose,

CA). One central incisor of average root length was selected per patient and total length

(L1) and the apical half of the root (L2) were measured. Corresponding volumes were obtained for the total length of tooth root (V1) and the apical of the root (V2). The absolute change in root volume was compared with the corresponding length of root to determine a direct correlation. The sample was then divided into two groups (Thick and

Thin) based on the median value of root width (W1) at half the root length and the correlation between root morphology and the percent change in root volume was compared.

The change in linear measurements along the facial plane of a maxillary central incisor was not directly related to corresponding volumetric changes. In fact, for the

LLU Discipline

Periodontics

Department

Periodontics

School

School of Dentistry

First Advisor

Green, Martyn

Second Advisor

Henkin, Jeffrey

Third Advisor

Sahl, Erik

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

2014

Date (Title Page)

6-2014

Language

English

Library of Congress/MESH Subject Headings

Periodontics; Periodontal Diseases; Volumetric Analysis

Subject - Local

Periodontics; Volumetric Analysis; Periodontal Disease; Root Morphology

Type

Thesis

Page Count

35

Digital Format

PDF

Digital Publisher

Loma Linda University Libraries

Usage Rights

This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.

Collection

Loma Linda University Electronic Theses and Dissertations

Collection Website

http://scholarsrepository.llu.edu/etd/

Repository

Loma Linda University. Del E. Webb Memorial Library. University Archives

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