A stereolithographic template for computer‐assisted teeth preparation in dental esthetic ceramic veneer treatment

Abstract

Objective: This article describes a digital dental esthetic ceramic veneer treatment workflow using a stereolithographic template for teeth preparation. Clinical Considerations: We have presented the case of a 33-year-old woman with dental fluorosis who wanted an esthetic ceramic veneer treatment. A digital smile design was created on a virtual patient, and a virtual diagnostic wax-up was made. Based on the suggested ceramic material thickness, virtual teeth preparation was performed on the diagnostic wax-up. A special-teeth preparation template was then created digitally and fabricated using a stereolithographic technique. This template guided the teeth preparation using a special bur with a stopper. The veneers were fabricated by CAD/CAM and delivered good esthetics and function. Conclusions: The stereolithographic tooth reduction template helps realize digital restorative planning. It provides better control of the reduction depth of the labial and incisal preparation, making the operation simpler. Clinical significance: The digital dental esthetic ceramic veneer treatment workflow described here using a stereolithographic template for teeth preparation helped with the accurate control of reduction depth for minimally invasive teeth preparation, making the operation simpler, which is a significant improvement over the previous methods.

Shear bond strength of ceramic laminate veneers to finishing surfaces with different percentages of preserved enamel under a digital guided method

“…Each digital arch model was imported into Materialise software (Magics 23; Materialise, Leuven, Belgium), and virtual preparation was conducted on the sample tooth, as described by Gao et al [ 10 ]. Briefly, the labial surface was selected and shifted inward by using the “Offset” tool.…”

“…Computer-guided tooth preparation is developed from the technologies of dental scanners, computer-aided design (CAD) software, and computer-aided manufacturing (CAM) software. Guided tooth preparation promotes precisely controlled depths of preparation, and digital spatial analysis facilitates the completion intra-enamel preparation [ 10 – 12 ]. Nevertheless, in regard to discoloured or misaligned teeth, more reduction of tooth structure may be required to improve the aesthetic result, causing inevitable dentin exposure [ 13 ].…”

A digital workflow with the virtual enamel evaluation and stereolithographic template for accurate tooth preparation to conservatively manage a case of complex exogenous dental erosion

“…3 A digital tooth-supported template was designed on the virtual model of wax-up by using the bite splint module of the CAD software. 16 The thickness of the template was 1.4 mm uniformly, and the inner surface of the template was the outer surface of the waxup. The template had holes at designated points on labial, incisal and palatal surface of the impacted tooth.…”

“…The digital maxillary template with guide holes was saved as STL file in the dental CAD software and fabricated using a stereolithography 3D printer (ProJet MJP 3600; 3D Systems, Rock Hill, SC) and resin material (VisiJet S300, USA). 16 In order to facilitate the shade selection of maxillary incisors, we restored the teeth 31-34, 41-44 with composite resin (3M ESPE, USA) firstly. And then we selected the shade for the maxillary teeth using shade guides (3D-Master; Vita, Germany; Figure 3).…”

A digital workflow for accurately and rapidly creating an immediate provisional restoration with natural emergence profile using extracted tooth

“…Currently, templates have been widely used in the field of dentistry to improve the accuracy and convenience of treatment. [14][15][16] This report describes a digital workflow for the use of an extracted anterior tooth for an immediate provisional restoration. Under the guidance of templates which are designed based on the contour of the natural tooth and the location information of implantation site, the temporary abutment and natural tooth are rapidly milled and linked accurately, and the provisional restoration is precisely fixed in the targeted position.…”