Incremental techniques in direct composite restoration

Veeramachaneni Chandrasekhar, Laharika Rudrapati, Vijetha Badami, Muralidhar Tummala, Veeramachaneni Chandrasekhar, Laharika Rudrapati, Vijetha Badami, Muralidhar Tummala

Abstract

Polymerization shrinkage is one of the dental clinician's main entanglements when placing resin-based composite restorations. None of the method can assure a perfectly sealed restoration for adhesive restorative materials; clinicians must abode problems of polymerization shrinkage and its possible ill effects. The objective of this article is to review different incremental techniques that can ruin the polymerization shrinkage stress of direct composite restoration.

Keywords: Composites; incremental techniques; layering techniques; polymerization shrinkage.

Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Horizontal layering technique
Figure 2
Figure 2
Oblique layering technique
Figure 3
Figure 3
Vertical layering technique
Figure 4
Figure 4
Centripetal buildup technique (showing proximal composite semitransparent layer placed toward the matrix band using composite)
Figure 5
Figure 5
A schematic drawing illustrating use of intracavity extension tip
Figure 6
Figure 6
Completed restoration demonstrating various layers of centripetal buildup technique
Figure 7
Figure 7
Split incremental technique (a) the two diagonal cuts split first uncured horizontal increment of dentin shade into four triangle-shaped portions, this followed by photocuring from buccal lingual and occlusal directions (b and c) complete filling of one diagonal cut 1 with dentin shade composite and photocured, later ½ of other diagonal cut 2 filled with dentin shade composite and photocured and other ½ of cut 3 is similarly filled and cured. And the same procedure is followed for the next horizontal incremental (d) enamel shade component followed by translucent shade composite is placed and cured showing finished restoration
Figure 8
Figure 8
(a) Adhesive applied on prepared cavity (b) mesiolingual incremental placed (c) distolingual incremental placed (d) mesiobuccal incremental placed (e) centrobuccal incremental placed (f) distobuccal incremental placed showing completed restoration
Figure 9
Figure 9
(a) Buccal dentin restored (b) lingual dentin restored (c) final enamel layer restored showing finished restoration
Figure 10
Figure 10
Separate dentin and enamel buildup using an index (a) Preoperative view of Class I Dental Caries (DC) (b) preoperative impression of occlusal surface (using silicon putty) (c) cavity preparation completed (d) incremental restoration using dentin shade up to amelodentinal junction (e) completed restoration (obtained by applying final increment of enamel shade composite and silicon index over the unset material, minimal excess removed before curing, requiring no for occlusal adjustment)
Figure 11
Figure 11
Three-site technique

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Source: PubMed

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