Middle superior and anterior superior alveolar nerve injury following trauma to the maxillary sinus: a prospective clinico-radiographic evaluation

• 영문명: Middle superior and anterior superior alveolar nerve injury following trauma to the maxillary sinus: a prospective clinico-radiographic evaluation
• 발행기관: 대한구강악안면외과학회
• 저자명: Sathish Radhakrishna Eashwari Narayanan
• 간행물 정보: 『대한구강악안면외과학회지』제49권 제5호, 262~269쪽, 전체 8쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2023.10.31

영문 초록

Objectives: Anterior maxillary sinus wall fractures are common in all types of maxillofacial trauma. They can result in various complications, including injury to the surrounding nerves. Owing to its anatomy, trauma to the maxillary antrum can result in injury to the middle superior alveolar nerve (MSAN) and the anterior superior alveolar nerve (ASAN). The purpose of this study is to evaluate neurosensory deficits (NSD) present in maxillary gingiva, incisors, and premolars after injury to the anterior wall of the maxillary antrum. Materials and Methods: This prospective study was conducted among 39 patients sustaining unilateral fractures of the anterior maxillary sinus wall. Clinical neurosensory tests including two-point discrimination and fine touch discrimination were performed to classify the extent of nerve injuries as mild, moderate, severe, or anesthetic. Additional temperature discrimination and pulpal sensibility tests (electric pulp testing and cold testing) were carried out. A comparison of radiographic fracture patterns and severity of nerve injury was done. Testing was carried out immediately after trauma and at 2-month follow-up. Results: More than half of the patients assessed in the study group presented with NSD of the teeth and gingiva after trauma. The incidence of deficits varied with the type of test used to measure them. Most frequently, patients presented with both loss of two point as well as fine touch discrimination thresholds. Severe nerve injuries were associated with loss of temperature discrimination clinically and displaced fractures radiographically. There was no significant relationship between the recovery of pulpal and gingival sensation. The patterns of injury and recovery in ASAN and MSAN were similar. Conclusion: NSD after trauma to the maxillary antrum is relatively common. Clinical loss of temperature discrimination and radiographic signs of fracture lines passing through the canalis sinuosus are predictors of persistent and severe oral NSD.

목차

Ⅰ. Introduction

Ⅱ. Materials and Methods

Ⅲ. Results

Ⅳ. Discussion

Ⅴ. Conclusion

ORCID

Authors’ Contributions

Funding

Ethics Approval and Consent to Participate

Conflict of Interest

References

키워드

Maxillary sinus Trigeminal nerve injury Oral mucosa Tooth injuries Paresthesia