Biomedical subjects

Ming-li Liu

Publications and source records attributed to Ming-li Liu.

2 recordsLinked to original sources

PubMed2006

[Construction of inlay axial surface using B-Spline curve network].

OBJECTIVE: To realize the requirement of adjacent area accuracy, axial surface physical contour and smoothness in the process of inlay computer-aided design (CAD). METHODS: A compromised method was brought forward that some assistant 3-D constraint lines from occlusion to gingiva were used to lead the inlay contour on axial corner and other characterized areas, and two perpendicular 3-D constructing lines at adjacent area were used to construct accurate 3-D configuration of this area. The axial surface was completely defined by the network of specified curves which were two constructing lines and four borders. RESULTS: Inlay axial surface was smooth, the contour was consistent with the residual tooth body and the 3-D configuration in adjacent area was accurate. CONCLUSION: It is feasible to realize the inlay axial surface accuracy, smoothness, and consistency using the method of special distributed 3-D B-Spline curve network.

Computer-Aided Design↗

PubMed2005

[The inlay computer aided design based on reverse engineering technology].

OBJECTIVE: This study was to explore a CAD method for constructing occlusal and proximal surfaces of inlays using reverse engineering (RE) software and to develop a CAD software for the inlay fabrication. METHODS: The dentition model of a volunteer with individual normal occlusion was scanned with a 3D mechanical scanner. The scanned objects were prepared teeth with G. V. Black class I, class II and class VI (MOD) cavities, neighbor teeth, intercuspal position (ICP) record, and functional bite record (or functional generate path, FGP). Inlays were constructed based on RE technology using the database of Chinese normal teeth. RESULTS: The technique guideline of inlay CAD was developed based on RE softwares. Inlays designed with CAD technique showed smooth and continuous contours. The occlusal and proximal contacts of inlay met physiologic demands. CONCLUSIONS: It is a feasible method to develop a CAD software for inlay fabrication based on RE software.

Adult↗