State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, Wuhan University, Wuhan, China; Department of Pediatric Dentistry, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, Wuhan University, Wuhan, China.
J Endod. 2024 Jul;50(7):954-961. doi: 10.1016/j.joen.2024.04.003. Epub 2024 Apr 10.
The evaluation of pulp status is crucial for avulsed immature permanent teeth after replantation. In addition to commonly used clinical and radiographic examinations providing clinical evidence, the oxygen saturation test may offer valuable assistance. The aim of this study was to analyze the efficacy of a pulse oximeter in evaluating pulp status in avulsed and replanted immature permanent teeth.
A prospective observational study was performed including 51 avulsed and replanted immature permanent teeth. Routine clinical and radiographic examinations were performed and used as the basis for the diagnosis of pulp status during the 1-year follow-up period. Meanwhile, the oxygen saturation values of these teeth were recorded using a modified pulse oximeter at each visit.
Seven teeth completed pulp revascularization (success group), whereas 44 teeth failed to revascularize (failure group). Abnormal clinical and/or radiographic manifestations in the failure group were observed at an average period of 42.7 days, which was too late because a high incidence of inflammatory root resorption (43.18%) had occurred. For oxygen saturation tests, teeth in the success group showed an immediate postreplantation oxygen value of 70.71 ± 3.35, then an upward trend starting from the 2-week postreplantation visit, and a significantly increased final value of 81.86 ± 2.34 at the 1-year visit. In contrast, no increase trend was found for teeth in the failure group because abnormal clinical and/or radiographic manifestations emerged.
The oxygen saturation test is a reliable diagnostic method to evaluate pulp status of avulsed teeth as early as 2 weeks after replantation.
对再植后的外伤性脱位未成熟恒牙进行牙髓状态评估至关重要。除了常用的临床和影像学检查为临床诊断提供依据外，血氧饱和度测试可能也有重要的辅助作用。本研究旨在分析脉搏血氧仪评估外伤性脱位和再植的未成熟恒牙牙髓状态的效果。
进行了一项前瞻性观察研究，纳入 51 颗外伤性脱位和再植的未成熟恒牙。在 1 年的随访期间，常规进行临床和影像学检查，并将其作为牙髓状态诊断的基础。同时，在每次就诊时使用改良脉搏血氧仪记录这些牙齿的血氧饱和度值。
7 颗牙齿完成了牙髓血管再形成（成功组），而 44 颗牙齿未再血管形成（失败组）。失败组在平均 42.7 天出现异常的临床和/或影像学表现，这已经太晚了，因为已经发生了较高发生率的炎症性根吸收（43.18%）。对于血氧饱和度测试，成功组的牙齿在再植后即刻的血氧值为 70.71±3.35，然后从再植后 2 周开始呈上升趋势，在 1 年就诊时最终值显著增加到 81.86±2.34。相比之下，失败组的牙齿没有发现上升趋势，因为已经出现了异常的临床和/或影像学表现。
血氧饱和度测试是一种可靠的诊断方法，可在再植后 2 周内评估脱位牙齿的牙髓状态。
