Evaluating Interfacial Gaps for Esthetic Inlays

O'Neal, Sandra J.; Miracle, Robert L.; Leinfelder, Karl F.

doi:10.14219/jada.archive.1993.0253

Cited by 26 publications

(20 citation statements)

References 4 publications

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“…Studies have shown that single‐tooth CAD/CAM ceramic restorations have comparable clinical survival rates to those fabricated conventionally . Large marginal discrepancies result in extensive wear and dissolution of the luting agent by chemical erosion and physical fatigue, increasing microleakage of bacteria and their byproducts . In contrast, margins that are well adapted facilitate the removal of excess luting cement prior to polymerization, which keeps the proximal periodontal tissue healthy .…”

Section: Introductionmentioning

confidence: 99%

Micro‐CT Evaluation of Ceramic Inlays: Comparison of the Marginal and Internal Fit of Five and Three Axis CAM Systems with a Heat Press Technique

Alajaji

Bardwell

Finkelman

et al. 2016

J Esthet Restor Dent

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The marginal fit and internal adaptation of inlay ceramic restorations fabricated by a five-axis milling system have not been tested or compared with those fabricated by three-axis machines and the conventional heat-press method. The preferred method of inlay fabrication, whether in the lab or chair side, may be influenced by the results of this study and could affect future clinical decision-making. (J Esthet Restor Dent 29:49-58, 2017).

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Section: Introductionmentioning

confidence: 99%

Micro‐CT Evaluation of Ceramic Inlays: Comparison of the Marginal and Internal Fit of Five and Three Axis CAM Systems with a Heat Press Technique

Alajaji

Bardwell

Finkelman

et al. 2016

J Esthet Restor Dent

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“…1 3 , 7 2 , 7 5 , 9 0 S u b s e q u e n t l y, h owe ve r , i t appears that the wear rate begins to level off, and this has been confirmed by several authors. 22,72,103,104,109 This levelling off occurs at a point where the vertical loss of cement at an inlay margin is slightly less than the width of the gap for marginal gaps of up to 150 µm. 3,19 Others have suggested that the levelling off occurs when the depth of cement loss is approximately half the marginal width.…”

Section: Cement Wearmentioning

confidence: 99%

“…3,19 Others have suggested that the levelling off occurs when the depth of cement loss is approximately half the marginal width. 22 This means that the width of the band of resin cement may not be as critical to success of adhesively bonded ceramic inlays as was initially feared. 3 Another view states t h at a ve rtical depth of 50-75 µm is sufficient to predispose to secondary decay, 22 although this has not been a significant clinical problem with ceramic inlays to date.…”

Section: Cement Wearmentioning

confidence: 99%

“…40,106 Because the marginal area of an inlay is narrow and not subjected to direct occlusal contact, wear is due mainly to food abrasion and, in these situations, microfilled composites have been shown clinically to be most resistant to wear. 22,75,109,110 On the other hand, hybrid materials are recommended for situations in which there is occlusion directly on to the margin. 49 Both microfilled and fine hybrid luting cements were s h own to be most wear resistant in a two year clinical study when compared with a coarse hybrid and a glass ionomer.…”

Section: Cement Wearmentioning

confidence: 99%

“…15,16 A survey of 64 North American dental schools showed that 96 per cent of the schools offered an opportunity for students to become experienced with all-ceramic restorations. 17 There have been numerous laboratory studies examining various aspects of ceramic inlays, mainly focusing on those areas which led to failures in early attempts at these restorations, such as fit, marginal accuracy, gap location, and cement thickness; [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] microleakage;…”

mentioning

confidence: 99%

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The Clinical performance of ceramic inlays: A review

Bergman¹

1999

Australian Dental Journal

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The availability of improved ceramic materials, bonding techniques, new technology and issues of amalgam safety have led to a revival of interest in ceramic inlays in dentistry over the past ten years. Clinical studies have been carried out during this time using various evaluation techniques to assess the clinical performance of these restorations. In this paper, recent clinical studies are examined and a review of the current state of knowledge regarding the clinical performance and survival statistics of ceramic inlays is presented. The major problems associated with ceramic inlay therapy appear to be fracture, hypersensitivity, degree of fit, maintenance of marginal integrity, microleakage, bond failures and cement wear. Other areas which also affect the clinical performance of ceramic inlays are ceramic wear, opposing tooth wear, plaque accumulation, gingivitis, secondary caries, colour stability, anatomic form and radiopacity. Recommendations based on the findings of clinical studies are also presented and whilst no specific material or technique has been shown to be clearly superior, certain principles which predispose to success can be identified. When compared with other forms of aesthetic intracoronal restorations, ceramic inlays perform well. However, their high cost and extreme technique sensitivity would appear to restrict their use to certain limited clinical situations.

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The influence of the cavity preparation design on marginal accuracy of laboratory-processed resin composite restorations

et al. 2007

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The aim of this study was to evaluate the influence of different cavity preparation designs on marginal accuracy of laboratory-processed resin composite restored teeth. Eighty mandibular human third molars were selected. There were two experimental factors, occlusal isthmus width (narrow vs wide) and cuspal coverage (inlay, one-cusp onlay, two-cusp onlay, and all-cusp onlay), resulting on eight groups (N = 10). Indirect composite restorations (SR Adoro, Ivoclar-Vivadent) were manufactured and positioned over each respective preparation. Marginal accuracy evaluation was accomplished using a stereomicroscope at three points on buccal, lingual, mesial, and distal regions with 40x magnification. The results showed significant differences (P = 0.00) with wide inlay showing the best overall marginal accuracy and narrow inlay the worst one. Two-way analysis of variance (ANOVA) showed significant differences when considering the factor occlusal isthmus width (P = 0.00). In general, preparations with wide occlusal isthmus presented better results than narrow ones, except for wide all-cusp onlays; however, the test failed to show differences when considering the cuspal coverage (P = 0.42) or the interaction between both factors (P = 0.30). The effect of occlusal width extension on marginal accuracy of indirect composite resin restorations is significant, with lower values of gaps width in wide preparations, but since in a clinical situation this would mean greater removal of sound tooth structure, less-aggressive preparations combined with other restorative procedures seem to be more feasible.

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Evaluating Interfacial Gaps for Esthetic Inlays

Cited by 26 publications

References 4 publications

Micro‐CT Evaluation of Ceramic Inlays: Comparison of the Marginal and Internal Fit of Five and Three Axis CAM Systems with a Heat Press Technique

Micro‐CT Evaluation of Ceramic Inlays: Comparison of the Marginal and Internal Fit of Five and Three Axis CAM Systems with a Heat Press Technique

The Clinical performance of ceramic inlays: A review

The influence of the cavity preparation design on marginal accuracy of laboratory-processed resin composite restorations

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