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Variations in structure within the trabecular bone of the mandible
Scandinavian Journal of Dental Research
|November 1, 1977
Summary
Mandibular bone mass and trabecular structure vary by tooth region, with incisor bone being denser. These bone characteristics appear independent of the mandible's dentition state.
Area of Science:
- Oral biology
- Bone histology
- Dental anatomy
Background:
- The mandible's internal bone structure is crucial for dental implant success.
- Understanding regional variations in mandibular bone is essential for prosthodontic and orthodontic procedures.
Purpose of the Study:
- To investigate intramandibular variations in bone mass, trabecular coarseness, and bone activity.
- To compare these bone variations across incisor, premolar, and molar regions.
- To assess if dentition status influences these mandibular bone characteristics.
Main Methods:
- Analysis of 24 autopsy-sourced human mandible specimens.
- Microradiography of ground sections from incisor, premolar, and molar regions.
- Quantitative assessment of bone mass using an electronic point-counting system.
Main Results:
- Significant variations in bone mass were observed within the same mandibular region.
- Incisor regions exhibited denser, more finely woven trabecular bone compared to premolar and molar regions.
- Mandibular bone activity was consistent across the mandibular body, and regional bone variations were independent of dentition status.
Conclusions:
- Mandibular bone structure demonstrates distinct regional differences, particularly between incisor and posterior tooth areas.
- Trabecular bone density and organization vary significantly within the mandible.
- The state of dentition does not appear to influence these observed intramandibular bone variations.