The Application of Sound Biomechanical Principles in the Design of Inlay, Amalgam and Gold Foil Restorations

Ingraham, Rex

doi:10.14219/jada.archive.1950.0071

Cited by 18 publications

(3 citation statements)

References 2 publications

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“…The anchorage promoted by resin composite, protecting the buccal and lingual cusps of Group C specimens, recovered the fracture resistance in similar values of sound teeth. The adhesive procedure was clearly not the only responsible for this resistance, but also cusp protection that avoided the separation in consequence of the wedge effect caused by cusp elongation 14 , 19 , 20 . No cusp fracture was seen in Group C. However, Group B presented some fractures indicating that only the adhesive interface may be insufficient to avoid these fractures.…”

Section: Discussionmentioning

confidence: 99%

“…Posterior teeth, particularly maxillary premolars, have an anatomic shape that makes them more likely to fracture the cusps under occlusal load 14 . Additionally, these teeth when treated endodontically can be easily fractured because of pulp chamber roof removal 19 , 20 , mainly when the marginal ridge is thin or totally removed 28 .…”

Section: Introductionmentioning

confidence: 99%

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Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage

et al. 2009

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Objectives:This in vitro study evaluated the fracture resistance of weakened human premolars (MOD cavity preparation and pulp chamber roof removal) restored with condensable resin composite with and without cusp coverage.Material and Methods:Thirty human maxillary premolars were divided into three groups: Group A (control), sound teeth; Group B, wide MOD cavities prepared and the pulp chamber roof removed and restored with resin composite without cusp coverage; Group C, same as Group B with 2.0 mm of buccal and palatal cusps reduced and restored with the same resin. The teeth were included in metal rings with self-curing acrylic resin, stored in water for 24 h and thereafter subjected to a compressive axial load in a universal testing machine at 0.5 mm/min.Results:The mean fracture resistance values ± standart deviation (kgf) were: group A: 151.40 ± 55.32, group B: 60.54 ± 12.61, group C: 141.90 ± 30.82. Statistically significant differences were found only between Group B and the other groups (p<0.05). The condensable resin restoration of weakened human premolars with cusp coverage significantly increased the fracture resistance of the teeth as compared to teeth restored without cusp coverage.Conclusion:The results showed that cusp coverage with condensable resin might be a safe option for restoring weakened endodontically treated teeth.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage

et al. 2009

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“…The prosthodontic treatment started, if the oral hygiene was sufficient, namely a papillary bleeding index ≤20 ( Saxer, Turconi & Elsässer, 1977) and periodontal disease (probing depths ≤4 mm) was absent. Cavities were prepared according to published guidelines in the literature ( Ingraham, 1950; Ingraham, Bassett & Koser, 1969; Shillingburg, Hobo & Whitsett, 1981). Inlays and onlays were cast with high‐precious gold alloys.…”

Section: Methodsmentioning

confidence: 99%

Long‐term survival estimates of cast gold inlays and onlays with their analysis of failures

Studer

Wettstein²,

Lehner

et al. 2000

J of Oral Rehabilitation

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The aim of the present study was to assess the clinical behaviour of cast gold restorations with respect to define a gold control against current and future ceramic and composite restorations. The study sample included 50 patients with 303 cast gold restorations. All restorations were cemented with a non-adhesive technique. A total of 303 restorations were evaluated clinically and radiographically using modified United States Public Health Service criteria. Restorations recorded as having an A- or a B-rating were defined as successful. Of the 303 restorations, 42 were judged as failures, which resulted in a failure rate of 13.8% for a mean observation time (+/- s.d.) of 18.7 ( +/- 9.5) years. The estimated Kaplan-Meier survival rates (s.e.) were 96.1% (+/- 1.1%) at 10 years, 87.0% (+/- 2.2%) at 20 years and 73.5% (+/- 5.4%) at 30 years. In total, biological reasons were counted 25 times in comparison to 17 technical reasons for those 42 failed cast gold restorations, with 17 secondary caries (40%) as the most common biological reason and with 13 retention losses (31%) as the most common technical reason. The endodontically treated tooth was exclusively identified as a risk factor. The restoration type (inlay versus onlay) did not influence the survival rate.

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Digital Micro Tooth Preparation for Posterior Indirect Adhesive Restorations

2022

Digital Guided Micro Prosthodontics

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The Application of Sound Biomechanical Principles in the Design of Inlay, Amalgam and Gold Foil Restorations

Cited by 18 publications

References 2 publications

Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage

Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage

Long‐term survival estimates of cast gold inlays and onlays with their analysis of failures

Digital Micro Tooth Preparation for Posterior Indirect Adhesive Restorations

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