J Dent Rehabil Appl Sci.  2016 Sep;32(3):149-157. 10.14368/jdras.2016.32.3.149.

Tooth preparation design of dental laminate veneer: a review article

• Jo EH
• Ko KH
• Park CJ
• Cho LR
• Huh YH

• KMID: 2357842
• DOI: http://doi.org/10.14368/jdras.2016.32.3.149

Abstract

Tooth preparation design is essential for successful laminate veneer treatment. Preservative tooth preparation limited on enamel, supra-margin advantageous for plaque control, and maintaining contact points known as a standard concept. However, the tooth preparation design has been the controversial issue. In biomechanical considerations, the incisal coverage should be decided on esthetic needs and necessity for the anterior guidance reconstruction. In occasion for sufficient enamel thickness, preparation can prolong to the palatal side but not recommended at palatal concavity. Elongation to contact point is selective option according to the cases. If an old resin restoration located at contact area, laminate veneer should cover over half area of that after surface treatment. The laminate veneer can be also selected at a partially discolored tooth root canal therapy (RCT) and at this occasion, the fiber-reinforced composite (FRC) posts are recommended.

Keyword

laminate; tooth preparation; enamel; palatal concavity; contact area

MeSH Terms

Dental Enamel
Dental Veneers*
Tooth Preparation*
Tooth Root
Tooth*

Figure

• 

  Fig. 1 Schematic diagram of specimen preparation. Butt joint type (A), Palatal chamfer type (B).

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  Fig. 2 (A) Specimen preparation design of Castelnuovo et al.,17 (B) Specimen preparation design of Schmidt et al.22

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  Fig. 3 Specimen preparation design of Chun et al.30 (A) labial veneer, (B) 3/4 veneer, enamel, (C) 3/4 veneer, dentin, (D) full veneer, enamel, (E) full veneer, dentin.

• 

  Fig. 4 The margin location of each veneer.41 (A) Short wrapping-the veneer was extended only to the facial margin of the preexisting interdental composite. (B) Medium wrapping-the veneer was extended into the bulk of the preexisting composite, penetrating 50% of the interdental area. (C) Long wrapping-the veneer covered the entire interdental area.

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  Fig. 5 The design of PLV preparation on tooth with class III composite filling (A), tooth with class IV cavity (B).42 PLV, porcelain laminate veneer.

Reference

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