口腔材料器械杂志
口腔材料器械雜誌
구강재료기계잡지
Chinese Journal of Dental Materials and Devices
2015年
3期
123-128
,共6页
激光扫描法%牙颌模型%可靠性
激光掃描法%牙頜模型%可靠性
격광소묘법%아합모형%가고성
Laser scanning%Digital dental models%Reproducibility
目的 研究应用激光扫描法建立三维数字化牙颌模型的准确性和可靠性评价.方法 选择正畸治疗患者的石膏模型24副,采用激光扫描法对石膏模型进行扫描,建立三维数字化牙颌模型,并对其牙冠宽度、牙冠高度、牙弓宽度和牙弓长度进行测量,与手工测得的结果进行比较分析.结果 石膏模型和数字化模型所有测量项目的一致性相关系数中,除双侧上颌第一前磨牙颊尖顶之间的距离(CCC=0.6307)和上颌中切牙近中接触点到右侧第一磨牙远中接触点的距离2项测量指标结果(CCC=0.6571)良好外,其余指标的一致性都比较接近(CCC﹥0.7).所有测量项目的均数差在0.017~0.862mm之间,平均为0.104mm, D%﹤5%,部分指标存在统计学差异,但不具有临床意义.结论 基于激光扫描技术重建的三维数字化牙颌模型中,牙冠宽度和牙冠高度的准确性高,牙弓长度其次,牙弓宽度的准确性较低.
目的 研究應用激光掃描法建立三維數字化牙頜模型的準確性和可靠性評價.方法 選擇正畸治療患者的石膏模型24副,採用激光掃描法對石膏模型進行掃描,建立三維數字化牙頜模型,併對其牙冠寬度、牙冠高度、牙弓寬度和牙弓長度進行測量,與手工測得的結果進行比較分析.結果 石膏模型和數字化模型所有測量項目的一緻性相關繫數中,除雙側上頜第一前磨牙頰尖頂之間的距離(CCC=0.6307)和上頜中切牙近中接觸點到右側第一磨牙遠中接觸點的距離2項測量指標結果(CCC=0.6571)良好外,其餘指標的一緻性都比較接近(CCC﹥0.7).所有測量項目的均數差在0.017~0.862mm之間,平均為0.104mm, D%﹤5%,部分指標存在統計學差異,但不具有臨床意義.結論 基于激光掃描技術重建的三維數字化牙頜模型中,牙冠寬度和牙冠高度的準確性高,牙弓長度其次,牙弓寬度的準確性較低.
목적 연구응용격광소묘법건립삼유수자화아합모형적준학성화가고성평개.방법 선택정기치료환자적석고모형24부,채용격광소묘법대석고모형진행소묘,건립삼유수자화아합모형,병대기아관관도、아관고도、아궁관도화아궁장도진행측량,여수공측득적결과진행비교분석.결과 석고모형화수자화모형소유측량항목적일치성상관계수중,제쌍측상합제일전마아협첨정지간적거리(CCC=0.6307)화상합중절아근중접촉점도우측제일마아원중접촉점적거리2항측량지표결과(CCC=0.6571)량호외,기여지표적일치성도비교접근(CCC﹥0.7).소유측량항목적균수차재0.017~0.862mm지간,평균위0.104mm, D%﹤5%,부분지표존재통계학차이,단불구유림상의의.결론 기우격광소묘기술중건적삼유수자화아합모형중,아관관도화아관고도적준학성고,아궁장도기차,아궁관도적준학성교저.
Objective To evaluate the accuracy and reproducibility of the 3D digital dental models prepared using laser scanning technique. Methods 24 plaster models of orthodontic patients were selected and the digital models were constructed by laser scanning, and then the width and height of crown, the length and width of dental arch were measured. The data was compared with those obtained by manual measurement. Results The concordance correlation coefficient (CCC) of all these measurements were quite good (CCC>0.7) except DU4B(CCC=0.6307) and DU1-6R(CCC=0.6571). The mean difference is from 0.017 to 0.862, and the average mean difference is 0.104, D%<5%, there were significant differences in some indicators, but it was still clinically acceptable. Conclusions In the digital dental models by laser scanning technique, the accuracy of the width and height of crown was first, followed by the length of dental arch, and then the width of dental arch.
