Related Experiment Video
Updated: Aug 1, 2026
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
A new classification of molar furcation involvement based on the root trunk and horizontal and vertical bone loss
1Graduate Institute of Dental Sciences and Periodontics, Kaohsiung Medical College School of Dentistry, Taiwan, Republic of China.
Abstract:
This study presents a new classification of molar furcation involvement based on the root trunk and horizontal and vertical attachments, and relates them to guidelines in diagnosis, prognosis, and treatment of molar furcation involvements. The type of root trunk were classified on the basis of the ratio of vertical dimension of root trunk to root length as types A, B, and C. Based on the results of this study, the authors conclude that consideration of the root trunk type as well as the horizontal and vertical attachment loss in the classification of molar furcation involvements may facilitate prognosis, diagnosis, and treatment planning.
Related Concept Videos
01:15Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
01:21Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.