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根尖孔尚未完全发育形成的年轻恒牙,若受到龋病、外伤等外界因素影响。会导致其牙髓坏死,从而影响其牙根的继续发育形成。临床上常采用根尖诱导成形术促进其发育完成。笔者于1996年起采用复合羟基磷灰石糊剂对38例无牙髓年轻恒牙进行诱导根尖形成术,取得了满意疗效,现报道如下。 1 临床资料 1.1 一般资料:患者38例,年龄9～13岁,共42颗患牙,前牙36颗,其中外伤冠折所致24颗,龋病所致12颗:双尖牙6颗,均为畸形中央尖所致。术前均摄x线片,X线片显示患牙牙根尖呈喇叭口状,6例伴有根尖病灶,就诊时牙髓均已坏死。 1.2 材料:粉末型羟基磷灰石(华西医科大学口腔科技开发部生产),替硝唑(珠海丽珠制药厂生产),齿科用丁香油。 1.3 治疗方法:通过术前X线片了解牙根发育情况,
Apical hole has not yet fully developed the formation of young permanent teeth, if subjected to dental caries, trauma and other external factors. Will cause its pulp necrosis, thus affecting the continued development of its root formation. Clinically, apical induction angioplasty is often used to promote its development. In 1996, the author used compound hydroxyapatite paste to induce root apical formation in 38 cases of non-pulp young permanent teeth and obtained satisfactory curative effect. The report is as follows. 1 Clinical data 1.1 General Information: 38 patients, aged 9 to 13 years old, a total of 42 teeth, 36 anterior teeth, of which 24 due to traumatic coronary artery crown, caries caused by 12: 6 canines, Are caused by deformity of the central tip. Preoperative radiographs of X-ray, X-ray films showed apex was a trumpet-like tooth tip, 6 cases with apical lesions, the pulp has been treated when necrosis. 1.2 Materials: powder hydroxyapatite (West China Medical University Department of Oral Science and Technology Development), tinidazole (Zhuhai Lizhu pharmaceutical production), dental clove oil. 1.3 treatment: preoperative X-ray understanding of root development,