CAJ | 학술논문

目的探索上颌前牙区龈乳头充满牙间接触点根方楔形间隙时(以下简称龈乳头充满)的特点及相关因素.方法选择牙龈健康的北京大学口腔医学院在读学生15人,共纳入62个龈乳头,进行印模技术结合造影间接牙龈显影的锥形束CT拍摄后测量骨嵴顶处的龈乳头高度及厚度,临床测量龈乳头宽度,应用SPSS16.0统计软件分析其相互关系.结果自然人群中上颌前牙区健康牙龈乳头充满时骨嵴顶处的龈乳头高度为(3.67 ±0.51) mm(均＜5 mm)；龈乳头厚度为(8.38±0.75) mm;龈乳头宽度为(4.35±1.03) mm.中切牙与侧切牙间骨嵴顶处龈乳头厚度为(7.97±0.56) mm,与中切牙间及侧切牙与尖牙间的龈乳头厚度差异均有统计学意义(P＜0.05).龈乳头充满时骨嵴顶处的龈乳头高度与厚度呈中度正相关(r=0.433,P＜0.001).结论应用锥形束CT拍摄能获得龈乳头的清晰影像并可测量其相关指标,牙龈健康的自然人群上颌前牙区龈乳头充满时骨嵴顶处龈乳头高度均＜5 mm；骨嵴顶处龈乳头高度、厚度、宽度两两相关.
목적 탐색상합전아구간유두충만아간접촉점근방설형간극시(이하간칭간유두충만)적특점급상관인소.방법 선택아간건강적북경대학구강의학원재독학생15인,공납입62개간유두,진행인모기술결합조영간접아간현영적추형속CT박섭후측량골척정처적간유두고도급후도,림상측량간유두관도,응용SPSS16.0통계연건분석기상호관계.결과 자연인군중상합전아구건강아간유두충만시골척정처적간유두고도위(3.67 ±0.51) mm(균＜5 mm)；간유두후도위(8.38±0.75) mm;간유두관도위(4.35±1.03) mm.중절아여측절아간골척정처간유두후도위(7.97±0.56) mm,여중절아간급측절아여첨아간적간유두후도차이균유통계학의의(P＜0.05).간유두충만시골척정처적간유두고도여후도정중도정상관(r=0.433,P＜0.001).결론 응용추형속CT박섭능획득간유두적청석영상병가측량기상관지표,아간건강적자연인군상합전아구간유두충만시골척정처간유두고도균＜5 mm；골척정처간유두고도、후도、관도량량상관.
Objective To investigate the features of the fill of interdental spaces by gingival papillae and the associated factors.Methods Fifteen volunteers with healthy gingiva were involved in this study.The height and thickness on the alveolar crest level of 62 maxillary anterior papilla were measured radiographically with cone-beam computed tomography(CBCT) scans.A standardized periodontal probe with Williams markings was used for measurements of the papilla width on the alveolar crest level.Results When the papilla was complete fill interdentally,the mean height of papillary tissue on the alveolar crest level (equal to contact point-bone crest) was (3.67 ± 0.51) mm.The mean thickness of papilla on the alveolar crest level was (8.38 ± 0.75) mm.The papilla height had a positive correlation with papilla thickness (r =0.433,P ＜ 0.001).Conclusions The cone-beam computed tomography can be used for clear visualization of the papilla profile and the measurements of papilla height and thickness.Thicker and wider tissue was associated with an increased likelihood of having a complete papilla fill.