Importance of periodontal ligament thickness

This study evaluated whether periodontal ligament (PL) thickness varied with root size and examined the possible influence of this variation on orthodontic mechanics. Measurements were taken of the maxillary left first molar in 54 male Wistar rats. Mean mesial and distal PL thicknesses were compared...

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Bibliographic Details
Published in:Brazilian oral research 2013-01, Vol.27 (1), p.76-79
Main Authors: Cuoghi, Osmar Aparecido, Tondelli, Pedro Marcelo, Aiello, Carlos Alberto, Mendonça, Marcos Rogério de, Costa, Silvano Cesar da
Format: Article
Language:English
Subjects:
Animals
Biomechanical Phenomena
Dentistry
DENTISTRY, ORAL SURGERY & MEDICINE
Male
Odontometry
Organ Size
Periodontal Ligament
Periodontal Ligament - anatomy & histology
Rats
Rats, Wistar
Surface Properties
Tooth Movement
Tooth Movement Techniques
Tooth Root
Tooth Root - anatomy & histology
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Summary:This study evaluated whether periodontal ligament (PL) thickness varied with root size and examined the possible influence of this variation on orthodontic mechanics. Measurements were taken of the maxillary left first molar in 54 male Wistar rats. Mean mesial and distal PL thicknesses were compared between the intermediate buccal and mesiobuccal roots using paired Student's t-tests with a 5% significance level. Mean values differed significantly between roots (p < 2.2 × 10(-16)). PL thickness in rats is directly proportional to root dimensions.
ISSN:1806-8324
1807-3107
1807-3107
1806-8324
DOI:10.1590/S1806-83242013000100014