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Bone morphology after delayed tooth replantation - case series
Mitsuhiro Tsukiboshi1, Taisuke Tsukiboshi
1Tsukiboshi Dental Clinic, Aichi, Japan.
Summary
Delayed tooth replantation leads to alveolar bone loss, particularly on the buccal side, and replacement root resorption. Bone volume is not fully maintained, impacting the maxillary anterior region.
Area of Science:
- Dentistry
- Oral and Maxillofacial Surgery
- Radiology
Background:
- Delayed tooth replantation is a common clinical scenario following dental avulsion.
- Understanding the subsequent alveolar bone changes is crucial for treatment planning and prognosis.
Observation:
- Three-dimensional cone-beam computed tomography (CBCT) was used to assess morphological changes in alveolar bone.
- The study analyzed 11 cases of delayed tooth replantation between 2003 and 2012.
Findings:
- Delayed replantation frequently results in ankylosis-related replacement root resorption, often arrested near the alveolar crest.
- Significant reduction in buccal alveolar bone thickness was observed, progressing towards the root canal space.
- Palatal bone thickness remained largely unaffected, but overall alveolar bone volume was not preserved.
Implications:
- These findings highlight the detrimental effects of delayed replantation on alveolar bone morphology.
- The buccal bone loss may compromise aesthetic outcomes and future prosthetic rehabilitation in the maxillary anterior region.
- Maintaining a viable periodontal ligament is critical for preserving the buccal alveolar bone profile.
