Dental Anxiety and Fear among Patients in Jazan, Kingdom of Saudi Arabia: A Cross-sectional Study

n/

A Multidisciplinary Approach in the Treatment of Tempromandibular Joint Pain Associated with Qat Chewing

Pain of the tempro-mandibular joint (TMJ) has a direct bearing to missing teeth and excessive physical activity. Consumption of qat requires chewing on the leaves to extract their juice for long hours. A 65-year-old male Yemeni patient, a Qat chewer, reported to the university dental hospital at King Khalid University complaining of pain in left temporomandibular joint with missing mandibular anterior teeth. A multidisciplinary approach for the overall treatment of the patient was decided. Initial treatment was the relief of patient’s pain with the help of a night guard. This was followed by a fabrication of anterior FPD. The case was under maintenance and follow-up protocol for a period of 8 months with no complaint of pain discomfort

Repairing of Fractured Metal Ceramic Restorations: Techniques Review

Abstract Statement of the problem: The ceramic veneer in Metal-ceramic crowns and FPDs have the potential for fracture. Fractured porcelain poses a serious and clinical problem. It may be desirable to repair a broken retainer of a fixed prosthesis rather than to remove it and risk the possibility of destroying the entire restoration or damaging the abutment teeth. Techniques: Intra-oral (re-bonding the fractured chip to the fixed restoration or using a composite resin to restore the fractured porcelain), Extra-oral (pin-retained casting, over-casting veneered with porcelain (for repair abutment or pontic), modified over casting or porcelain layer with resin adhesion, and Combination of intra and extra oral techniques. Conclusion: Ceramic repair techniques for fractured ceramic bridge should be consider as an alternative solution instead of replacing a new prosthesis which is coasty, harmful to the abutment teeth and long procedures. This article presents an over view of the different techniques used to repair the fractured porcelain from metal ceramic restoration or remaking of the fractured retainer from a multi-unite FPD.   Key words: Metal ceramic restoration, techniques repair, intraoral, extr oral &nbsp

Physical, Optical, and Mechanical Properties of Ceramic Materials after Coffee Immersion and Evaluation of Cleaning Impact with Different Oral Hygiene Tools

This study aimed to evaluate the effect of three oral hygiene tools, a regular toothbrush, an electronic toothbrush, and mouthwash, on the color stability of three different computer-aided design (CAD) and computer-aided manufactured (CAM) ceramic blocks. Feldspathic ceramic (Vita Triluxe Forte), hybrid resin ceramic (Vita Enamic), and lithium disilicate glass-ceramic (IPS e.max CAD) were used in this study. A CAD/CAM system and 81 (27 of each material) samples of ceramic blocks were used. All samples were immersed in black coffee for 15 days, and the coffee was changed twice per day. Using a spectrophotometer probe, samples on a grey background were scanned, and physical properties like surface hardness and depth were measured using interferometry and a 3D non-contact surface metrology. After 30 days of application of oral hygiene tools, instruments were used to measure various physical, mechanical, and optical properties. Vita Triluxe had the highest average color variation values (ΔE00) after 15 and 30 days of immersion in coffee in both regular and electronic toothbrushes. Moreover, IPS e.max CAD had the least ΔE00 values with no significant differences among the groups. The surface roughness (Ra) of the Vita Enamic ceramic increased when using a regular toothbrush, and the surface height (Rz) for the Vita Enamic ceramic increased when an electronic toothbrush was used. IPS e.max CAD had the greatest modules of elasticity forces, and Vita Triluxe Forte had the lowest when used with a regular toothbrush. The ΔE00 values of the tested materials were minimally increased or decreased after 30 days of cleaning, and all were clinically acceptable. Ra and Rz were the highest for Vita Enamic in comparison to the other groups. The highest percentage in IPS e.max CAD was associated with a type 1 fracture, whereas type 3 was predominantly observed with Vita Enamic, and type 2 in the Vita Triluxe group without significant differences