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Scanning electron microscopic examination of root after apicoectomy
Journal of Oral Pathology
|June 1, 1978
Summary
Scanning electron microscopy revealed honeycomb-like structures within resorption lacunae on human tooth roots after surgery. Newly formed cementum and protruding odontoblastic processes were also observed, offering insights into root healing and repair processes.
Area of Science:
- Dental histology
- Oral biology
- Scanning Electron Microscopy
Background:
- Surgical procedures can impact tooth root morphology and healing.
- Understanding root repair mechanisms is crucial for regenerative dentistry.
Purpose of the Study:
- To investigate the microscopic changes on human tooth roots following surgical procedures.
- To characterize resorption lacunae and associated structures.
Main Methods:
- Scanning electron microscopy (SEM) was employed.
- Examination of resected root areas from eight human teeth.
- Analysis of cementum, lacunae, and periodontal tissue remnants.
Main Results:
- Resorption lacunae were identified in areas with newly formed cementum protuberances.
- Unique honeycomb-like structures were observed within these lacunae.
- Remnants of periodontal ligaments and fibers were present.
- In one case, dentinal tubules with protruding odontoblastic processes were visible.
Conclusions:
- The study provides SEM evidence of root surface changes post-surgery.
- Honeycomb structures in lacunae may represent a specific phase of root resorption or repair.
- Observations highlight the complex interplay of cementum formation and resorption in healing dental tissues.