Related Experiment Video
Updated: Jan 15, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
A classification of radicular grooves from the perspective of periodontology
Huxiao Li1, Zhaowei Tai2, Jiachen Dong1
1Department of Periodontology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China.
Background:
Radicular grooves are relatively common, yet a standardized classification system and treatment regimen remain elusive. Existing classifications primarily focus on the morphological aspects of dental structures, overlooking the crucial periodontal condition of affected teeth. This oversight hampers the development of effective diagnostic and treatment protocols. Therefore, the article aims to present a classification that integrates the periodontal status of affected teeth and propose corresponding therapeutic approaches.
Methods:
The article discusses four classes of radicular grooves based on the location of the deformity and the periodontal status of teeth. Each class is accompanied by a recommended treatment program. For the most severe class, a periodontal-endodontic surgical approach is suggested as an alternative to intentional replantation.
Results:
The article presents the treatment process and outcomes for at least one case report for each class, achieving positive results across all classes. Notably, cases with deep periodontal pockets showed significant postoperative improvement.
Conclusion:
This paper proposes a novel radicular groove classification system incorporating periodontal status, with treatment protocols specific to each category. Clinical case reports validate the clinical applicability of this approach, demonstrating favorable outcomes across all classification groups.
More Related Videos
Related Concept Videos
Tooth 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...
Teeth
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...
Assessment of apical radial pulse
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
Classification of Epithelial Tissues: Overview
Based on the number of cell layers,...
Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An...
Classification of Bones
Long and Short Bones
The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The...

