Efficacy of Denture Cleansers on Microbial Adherence and Surface Topography of Conventional and CAD/CAM-Processed Denture Base Resins.

This study assessed the efficacy of five denture cleansers on the microbial adherence and surface topography of conventional and CAD/CAM denture base resins. Acrylic resin discs were fabricated using conventional, milling, and 3D printing methods (N = 180). The discs were contaminated with dual species of and biofilm for 72 h and then disinfected with either of the denture cleansers (Fittydent cleansing tablets, 2% Chlorhexidine gluconate, 0.

Effect of Different Wax Pattern Manufacturing Techniques on the Marginal Fit of Lithium Disilicate Crowns.

Purpose: The present study evaluated the marginal gap of lithium disilicate crowns fabricated through three different wax pattern techniques; Conventional, Milling and 3D-printing. Materials and Methods: Thirty stone models were replicated from a stainless-steel model representing a prepared tooth; ten were sent to make conventional wax patterns while the remaining were sent to a digital dental scanner. The computer aided design was completed and STL (Standard Tessellation Language) files were sent to either milling or 3D-printing machines.

Effects of background color and thickness on the optical properties of CAD-CAM resin-matrix ceramics.

Statement Of Problem: Information regarding the masking ability of computer-aided design and computer-aided manufacture (CAD-CAM) resin-matrix ceramic materials with different compositions is scarce.

Purpose: The purpose of this in vitro study was to evaluate the effects of background color and thickness on the optical properties (color and translucency) of CAD-CAM resin-matrix ceramics.

Material And Methods: Twelve rectangular specimens were fabricated at a different thickness (1, 1.

Effect of aging and mechanical brushing on surface roughness of 3D printed denture resins: A profilometer and scanning electron microscopy analysis.

Background: The use of 3D printed material in the dental field is gaining tremendous attention. However, studies related to 3D printed denture resins are scarce and need consideration before their inclusion in routine clinical practice.

Objective: This study aimed to assess the surface roughness (Ra) of 3D printed denture resins following aging and mechanical brushing.

Color stability of 3D-printed denture resins: effect of aging, mechanical brushing and immersion in staining medium.

Purpose: This study evaluated and compared the color stability of 3D-printed and conventional heat-polymerized acrylic resins following aging, mechanical brushing, and immersion in staining medium.

Materials And Methods: Forty disc-shaped specimens (10 mm in diameter and 3 mm thick) were prepared from two 3D-printed [DentaBASE (DB) and Denture 3D+ (D3D)] and one conventional polymethylmethacrylate (PMMA) denture materials. The specimens were thermo-cycled, subjected to mechanical brushing, and were immersed in either coffee, lemon juice, coke, or artificial saliva (AS) to simulate one and two years of oral use.

Efficacy of Rose Bengal and Curcumin mediated photodynamic therapy for the treatment of denture stomatitis in patients with habitual cigarette smoking: A randomized controlled clinical trial.

Background: Cigarette smoking in conjugation with bad oral hygiene is considered a typical predisposing factor for many oral diseases including denture stomatitis. This study investigated the effect of Rose Bengal (RB)-and Curcumin (CUR)-mediated photodynamic therapy (PDT) in comparison with nystatin therapy in the intervention of denture stomatitis in cigarette smokers.

Methods: Overall, 45 habitual cigarette smokers aged ~58 years having denture stomatitis were categorized into three groups: Group-I - RB-mediated PDT, Group-II - CUR-mediated PDT, and Group-III - Nystatin therapy.

Clinical, bacterial, and inflammatory outcomes of indocyanine green-mediated photodynamic therapy for treating periimplantitis among diabetic patients: A randomized controlled clinical trial.

Background This 6-months randomized controlled clinical trial aimed to assess the efficacy of indocyanine green mediated photodynamic therapy (ICG-PDT) as an adjunct to peri‑implant manual debridement (PIMD) versus PIMD alone among Diabetes Mellitus (DM) patients in the treatment of peri‑implantitis. Methods A total of 48 DM patients having 64 implants were treated with either ICG-PDT + PIMD (n = 35 implants) or PIMD alone (n = 29 implants). Clinical (probing depth [PD], bleeding on probing [BOP], and plaque index [PI]) and radiographic (peri‑implant crestal bone loss [PCBL]) peri‑implant variables were recorded.

Radiation therapy in head and neck cancer.

This review summarizes the beginning of radiotherapy, techniques of modern radiation therapy with different types, toxicities induced by radiotherapy and their management. Head and neck radiation therapy is still improving for the better management and control of the cancer and induced radiotherapy toxicities.

Role of antimicrobial photodynamic therapy in reducing whole salivary oral yeasts colonization in type-2 diabetic and non-diabetic patients with and without dental implants.

Objective: The aim was to assess the impact of antimicrobial photodynamic therapy (aPDT) in reducing whole salivary oral yeasts colonization in type-2 diabetic and non-diabetic patients with dental implants.

Methods: Type-2 diabetic and self-reported non-diabetic patients were included. Participants were divided into the following groups: Group-1: Type-2 diabetic patients with dental implants; Group-2: Non-diabetic patients with dental implants; Group-3: Type-2 diabetic patients without dental prostheses; Group-4: Non-diabetic patients without dental prostheses.

Antimicrobial capacity of photodynamic therapy on oral health-related quality of life and halitosis among elderly patients wearing removal dentures.

Purpose: The aim of the present clinical trial was to evaluate the efficacy of antimicrobial photodynamic therapy (PDT) for the treatment of halitosis in elderly patients wearing dentures.

Methods: Elderly patients (>60 years age) wearing complete dentures and diagnosed with halitosis (HS levels >112 ppb) were divided into two groups: patients undergoing treatment with tongue scraper and full mouth disinfection (Group I) and patients undergoing treatment with tongue scraper, full mouth disinfection and single application of PDT (Group II). Oral health related quality of life (OHRQoL) was assessed using a 14-point Likert scale used in oral health impact profile (OHIP).

Review of surgical resection and reconstruction in head and neck cancer. Traditional versus current concepts.

This review summarizes the development of head and neck cancer resection and reconstruction. The developments in the treatment of cancer patients are reflected in their surgical outcomes, in addition to functional and aesthetic improvements. New technologies, such as surgical simulation and planning, minimally invasive surgery, and microsurgery have been added to the field to improve surgical resection of the tumor and reconstruction.

Effect of different maintenance time of torque application on detorque values of abutment screws in full-arch implant-supported fixed prostheses.

Background: The effect of different maintenance time of torque application and screw loosening in full-arch implant-supported prosthesis remains uninvestigated.

Purpose: To examine the effect of different maintenance time of torque application on detorque values of implant abutment screw in full-arch implant-supported fixed complete denture.

Materials And Methods: Passively fitting framework supported by four implants stabilized on resin model torqued to 35 N-cm and maintained for different times; instant torque application (protocol A), 10 seconds (protocol B), and 30 seconds (protocol C) were used.

Adherence of to complete denture surfaces : A comparison of conventional and CAD/CAM complete dentures.

Purpose: The goal of this study was to compare the adhesion of to the surfaces of CAD/CAM and conventionally fabricated complete denture bases.

Materials And Methods: Twenty discs of acrylic resin poly (methyl methacrylate) were fabricated with CAD/CAM and conventional procedures (heat-polymerized acrylic resin). The specimens were divided into two groups: 10 discs were fabricated using the CAD/CAM procedure (Wieland Digital Denture Ivoclar Vivadent), and 10 discs were fabricated using a conventional flasking and pressure-pack technique.

Botulinum Toxin for the Treatment of Gummv Smile.

Aim: The aim was to evaluate the effect of botulinum toxin (Botox) injections as a conservative treatment for gummy smile.

Materials And Methods: An experimental in vivo study was conducted at a dermatology clinic in Riyadh in January 2016. The study included 23 female patients who ranged from 20 to 50 years and were treated with Botox injections due to excessive maxillary gingival display.

The Effect of Color Training of Dental Students' on Dental Shades Matching Quality.

Objective: To assess the effect of color training on the dental shade matching quality of dental students of both gender and to study the need to include lectures and exercises about shade selection in the undergraduate dental curriculum.

Materials And Methods: One hundred and twenty junior dental students from the College of Dentistry at King Saud University participated in the present study and were distributed randomly into four testing groups. They were asked to match the color of four target shade tabs from the VITA Linearguide 3D-MASTER.

Antibiotic prophylaxis against infective endocarditis in adult and child patients. Knowledge among dentists in Saudi Arabia.

Objectives: To evaluate dentists' knowledge regarding the prevention of infective endocarditis in Saudi Arabia and their implementation of the 2007 American Heart Association guidelines.

Methods: In this cross-sectional study, in March 2014, 801 dentists who practice in different regions of Saudi Arabia completed a questionnaire regarding the need for antibiotic prophylaxis for specific cardiac conditions and specific dental procedures, prophylaxis regimens in adults and children, and recommendations for patients on chronic antibiotics, and in dental emergencies. The data were analyzed using one-way analyses of variance (ANOVAs) and independent t-tests, and a p-value less than 0.

Volumetric measurements of removed tooth structure associated with various preparation designs.

The amount of tooth structure that is removed as a consequence of tooth preparation has rarely been quantified. The aim of this study was to quantify the volume of reduction of tooth structure associated with different commonly used preparation designs. Eighty extracted teeth were divided into eight groups according to the type of preparation design and tooth type.