种植体支持单冠被动触觉敏感度及影响因素初探  

Preliminary study on tactile function of implant-supported single crowns

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作  者:李娜[1] 谢秋菲[1] 林野[2] 

机构地区:[1]北京大学口腔医学院·口腔医院修复科,100081 [2]北京大学口腔医学院口腔种植中心,100081

出  处:《中华口腔医学杂志》2013年第8期458-461,共4页Chinese Journal of Stomatology

基  金:“十一五”国家科技支撑计划(2007BAI18806)

摘  要:目的检测种植体支持单冠6个正交方向的被动触觉阈限,分析其影响因素,以期指导临床个性化调猞。方法利用牙齿触觉功能数字测试系统,测试19例种植修复患者(年龄25~56岁,男性8例,女性11例)的24件种植体支持单冠(上颌前牙5件,后牙7件;下颌后牙12件)6个正交方向(即唇颊、舌、近中、远中4个水平方向,根方和冠方2个垂直向)的被动触觉阈限,以同颌对侧同名天然牙为对照牙。利用配对样本t检验判断种植体支持单冠和对照牙、不同测试时间点的差异,单因素方差分析判断不同方向、牙位及性别的差异,检验水准为双侧d=0.05。结果种植体支持单冠和对照天然牙的被动触觉阈限分别为(1282±709)和(40±40)mN,差异有统计学意义(P〈0.001);种植体支持单冠颊舌向、近远中向和垂直向的被动触觉阊限分别为(1334±696)、(1102±605)和(1412±791)mN,其中,近远中向与垂直向的差异有统计学意义(P〈0.05);上颌前牙、上颌后牙和下颌后牙种植体支持单冠的被动触觉阈限分别为(1003±616)、(1302±620)和(1386±769)mN,其中,上颌前后牙的差异有统计学意义(P〈0.05);男女种植体支持单冠的被动触觉阈限分别为(1751±784)和(946±393)mN,差异有统计学意义(P〈0.001);戴冠后1周和1个月种植体支持单冠的被动触觉阈限分别为(1421±826)和(1411±814)mN,差异无统计学意义(P〉0.05)。结论种植体支持单冠的被动触觉阈限为天然牙的数十倍。种植体支持单冠的被动触觉敏感度存在方向、牙位和男女差异。种植体支持单冠的被动触觉敏感度在戴冠后1个月之内无明显变化。Objective To measure passive tactile threshold of implant-supported single crowns (ISSC) in six orthogonal orientations, to analyze impact factors, and to guide the ocelusal adjustment in a personalized manner. Methods The passive tactile thresholds of 24 implant-supported single crowns (5 maxillary anterior teeth, 7 maxillary posterior teeth and 12 mandibular posterior teeth) from 19 ISSC patients (8 men and 11 women, from 25 years old to 56 years old) were measured in six orthogonal orientations (four horizontal orientations of labial or buecal, lingual, mesial and distal, and two axial orientations of apical and coronal ) using a digital test system for tactile function of teeth. SPSS 19.0 for windows was used to analyze impact factors, using double-sided test, with a significance level of 0. 05. Paired-samples t test was used to test the difference between implant-supported single crowns and the controlled natural teeth, and between different time points. One-way ANOVA was used to test the difference between different orientations, maxilla-mandibular anterior-posterior, and men-women. Results The passive tactile thresholds of ISSC and control teeth were (1282 _± 709 ) and (40 _± 40 ) mN respectively. The difference was of statistical significance ( P 〈 0. 001 ) . The passive tactile thresholds of buccal-lingual, mesial-distal and axial of ISSC were ( 1334 ±696) , ( 1102 ±605) and ( 1412 ±791 )mN respectively, of which, the difference between mesial-distal and axial was of statistical significance ( P 〈 0. 05 ). The passive tactile thresholds of ISSC of maxillary anterior teeth, posterior teeth and mandibular posterior teeth were (1003 ± 616) , ( 1302 ± 620) and ( 1386 ± 769) mN respectively, of which, the difi'erenee between maxillary anterior teelh and posterior teeth was of statistical significance ( P 〈 O. 05 ) . The passive tactile thresholds of 1SSC of men and women were ( 1751 -784) anti (946 ± 393 )mN respectively, the

关 键 词:牙种植体 触觉 阈限值 

分 类 号:R783.6[医药卫生—口腔医学]

 

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