• Title/Summary/Keyword: Dental veneer

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THE RETENTION OF FULL VENEER GOLD CROWN BY CORE MATERIAL AND DENTAL CEMENT (Core와 시멘트의 종류가 전부주조금관의 유지력에 미치는 영향)

  • Ha Jum-Im;Cho Hye-Won;Dong Jin-Keun
    • The Journal of Korean Academy of Prosthodontics
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    • v.30 no.1
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    • pp.93-101
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    • 1992
  • The purpose of this study was to evaluate the effectiveness of core materials and luting agents on the retention of full veneer gold crown. The core materials used in this study was dental amalgam, and composite resin, and the luting agents were zinc phosphate cement, polycarboxylate cement, and glass ionomer cement. The obtained results were as follows. 1. In full veneer gold crown supported by composite resin core, the crown retention with zinc phosphate cement was the highest of all. 2. In full veneer gold crown supported by amalgam core, the crown retention was shown no statistical difference by luting agent. 3. There was no statistical difference in the crown retention between the full veneer gold crown supported by composite resin core and dental amalgam core.

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Effect of translucency on CAD/CAM ceramic according to different core/veneer thickness (캐드캠 세라믹의 코어와 베니어의 서로 다른 두께가 반투명도에 미치는 영향)

  • Kang, Wol;Kim, Ji-Hwan
    • Journal of Korean society of Dental Hygiene
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    • v.18 no.6
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    • pp.1037-1045
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    • 2018
  • Objectives: The purpose of this study was to evaluation the effect of translucency on CAD/CAM ceramic according to different core/veneer thicknesses. Methods: A total of 42 samples from 2 groups of 7 ceramic cores, each with 3 thickness values (0.8, 1.0, 1.2 mm) were manufactured. The veneers were also manufactured in 3 thicknesses (0.3, 0.5, 0.7 mm). The group names were based on the name of the ceramic core (IPS e.Max CAD; LD, and IPS Empress CAD; LR). The associated number was determined by the combined thickness of the core and veneer: 1 = (0.8 + 0.7); 2 = (1.0 + 0.5); 3 = (1.2 + 0.3). The translucency was measured using a spectrophotometer and defined via the contrast ratio (CR) and translucency parameter (TP). Two-way ANOVA was performed to compare the 2 groups (material and thickness). Results: As the core thickness increased, the TP value also increased, and the CR value (for LR group) decreased. The results of 2-way ANOVA demonstrated that the thicknesses of different core/veneer combinations significantly affected the translucency (p<0.05). Conclusions: The different core and veneer thicknesses affected the translucency of CAD/CAM ceramic.

Clinical case using The platinum foil Technique (백금박 라미네이트를 이용한 임상증례)

  • Kim, sun kyu;Shin, jun hyouk
    • Journal of the Korean Academy of Esthetic Dentistry
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    • v.29 no.1
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    • pp.4-12
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    • 2020
  • Recently, according to the concept of minimal invasive, there have been many opportunities for restoration treatment with porcelain laminate veneers that are less invasive and can ideally improve esthetics. Patients also visit the laminate well, and patients also want to reduce the amount of teeth cut, so the choice of the entire trimming crown is decreasing. Therefore, various techniques of laminate are required. Most dental clinicians seem to have negative images of laminates such as risk of fracture, margin pigmentation and dropout. However, this situation is due to incorrect adhesion manipulation and lack of inspection of the occlusal relationship, and there is no problem with the Porcelain Laminate Veneer itself. The purpose and scope of adaptation leading to the success of porcelain laminate veneer will be introduced.

Laminate production by manufacturing ceramic casting body and laminating using IPS Empress: a pressure casting method (가압주조방식인 IPS Empress로 세라믹 주조체를 제작 후 적층 형 성한 라미네이트 제작 증례)

  • Wook Tae Kim
    • Journal of Technologic Dentistry
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    • v.45 no.3
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    • pp.81-86
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    • 2023
  • Purpose: This study aimed to observe the effect of laminate veneer on patient's teeth based on the manufacturing of laminate veneer restorations, which are produced by fabricating a ceramic cast body using IPS Empress, a pressure casting method and then forming the veneer by layering. Subsequently, we assessed the potential of its clinical application. Methods: This study discusses and preserves various treatment plans, such as diagnostic wax-up and treatment room diagnosis, for patients who visit the hospital to improve the appearance of teeth due to diastema of maxillary teeth, inexperienced resin filling, lack of esthetics, and external teeth. A ceramic cast body is constructed using IPS Empress, which is an effective and aesthetic restoration pressure casting method to restore the veneer with a laminate made by layering. Results: Compared with the preoperative state, the frontal view of the patient after the final restoration showed the formation of a natural smile line; the space between the central and lateral incisors was filled in synchronously with the adjacent teeth. In addition, the emergence profile is maintained by reducing the over-contour as much as possible. Conclusion: The patient's quality of life is improved by providing them with a satisfactory natural smile.