Translation and psychometric properties of the Arabic version of the ageism scale for dental students (ASDS-Ar): A multi-institutional validation.

Background And Objective: Ageism represents an important barrier to high-quality healthcare for older adults. The present study sought to translate and validate the Arabic version of the Ageism Scale for Dental Students (ASDS-Arabic).

Materials And Methods: The 27-item ASDS tool was translated from English into Arabic following recommended cross-sectional forward and backward translation guidelines.

Knowledge, beliefs, attitude, and practices of E-cigarette use among dental students: A multinational survey.

Background: E-cigarette use is a trend worldwide nowadays with mounting evidence on associated morbidities and mortality. Dentists can modify the smoking behaviors of their patients. This study aimed to explore the knowledge, beliefs, attitude, and practice of E-cigarette use among dental students.

Effect of self-assessment in a removable prosthodontics preclinical course on skills and competence.

Purpose: Self-assessment is increasingly implemented in medical professions' curricula. In this research, the authors measure the effects of self-assessment within a preclinical removable prosthodontics course among dental students in a private dental school according to the European qualifications framework descriptors.

Materials And Methods: Thirty subjects, all fourth-year dental students, were included in this experiment.

Masticatory efficiency of implant-supported mandibular overdentures retained with attachments compared with conventional dentures: an in vitro digital colorimetric image analysis.

Despite the patient-reported advantages of implants in improving quality of life, satisfaction, and mastication, objective evaluations of the masticatory function and performance of implant-supported dentures are not well represented in the literature. The aim of the present study was to compare the masticatory efficiency of patients with conventional dentures with that of patients with mandibular overdentures retained by implants with 2 Locator attachments. A randomized clinical trial including 20 edentulous patients was conducted.

Happiness among dentists: a multi-scale, multi-national study from 21 countries.

Objectives: The extent to which dentists are happy with their profession and their life has not been well studied. The present study aimed to explore the level of happiness, satisfaction with life and psychological well-being among a sample of dental professionals from 21 countries.

Materials And Methods: The sample comprised 2,200 dentists from 21 countries.

Masticatory Efficiency in Implant-Supported Fixed Complete Dentures Compared with Conventional Dentures: A Randomized Clinical Trial by Color-Mixing Analysis Test.

Purpose: To compare the masticatory efficiency of an All-on-4 prosthesis with complete dentures on a Class I ridge with a color-mixing analysis test.

Materials And Methods: Ten patients with fixed complete dentures on implants and an additional 10 patients with conventional complete dentures on a Class I ridge (Atwood) chewed a bicolor chewing gum (Hubba Bubba) for different numbers of cycles (5, 10, 15, and 20). The chewed gum was retrieved, scanned, and weighted to quantify masticatory efficiency.

All-ceramic Computer-aided Design and Computer-aided Manufacturing Restorations: Evolution of Structures and Criteria for Clinical Application.

Background: At a time when esthetics is becoming increasingly important in society, the metal-ceramic system, although clinically reliable in the long term, no longer grants satisfaction in terms of mimicry and biocompatibility. Over the last two decades, the growth of computer-aided design and computer-aided manufacturing (CAD/CAM) systems has promoted the development of new all-ceramic materials. However, the abundance and diversity of the suggested materials involved in fixed prosthetic rehabilitation place the practitioner in a situation of conflict regarding the choice of selecting the type of restoration appropriate to the clinical situation presented to him/her.

Effect of Cyclic Dislodging on the Retention of Two Attachment Systems for Implant-supported Overdentures: An In Vitro Study.

Purpose: The aim of this study was to compare and evaluate the retention of two new attachment systems used for implant-supported overdentures subjected to insertion-removal cycles.

Materials And Methods: Twenty custom-manufactured polyvinyl chloride models mimicking implant-retained over-dentureresin blocks were fabricated and divided into two groups (n = 10): group 1 ('Kerator' attachment) and group 2 ('EMI' attachment). Each model received two parallel implants (JD evolution®) 20 mm apart and was subjected to cyclic retention forces of 10, 100, 1000, 5000, 10000 and 14600 cycles using a universal testing machine in a 0.

Retentive force variations of stud attachments for implant overdentures.

Implant overdentures are considered a standard treatment option by many practitioners, especially for edentulous mandibles. Stud attachments have been used extensively in the construction of these overdentures. In this study, the retentive forces of O-ring/ball and Locator overdenture attachments under various conditions in the mouth were investigated through pull-out tests.

The ala-tragus line as a guide for orientation of the occlusal plane in complete dentures.

Aim: The use of the ala-tragus line (ATL) to orient the occlusal plane (OP) is controversial because there is a lack of agreement on the exact points of reference for this line. This study determined the relationship between the natural OP and ATL which was established by using the inferior border of the ala of the nose and (1) the superior border of the tragus (ATL1), (2) the tip (ATL2), and (3) the inferior border of the tragus (ATL3).

Materials And Methods: Lateral cephalometric radiographs were taken of each subject by a standard method and tracings were obtained on acetate paper to show the OP and the three ala-tragus lines.

Relationship between the occlusal plane corresponding to the lateral borders of the tongue and ala-tragus line in edentulous patients.

Aim: Definitions of the ala-tragus line (ATL) cause confusion, because the exact points of reference for this line do not agree. This study determined the relationship between the prosthetic occlusal plane (OP) corresponding to the lateral borders of the tongue and ATL which was established by using the inferior border of the ala of the nose and (1) the superior border of the tragus (ATL 1), (2) the tip (ATL 2) and (3) the inferior border of the tragus (ATL 3).

Materials And Methods: Neutral zone moldings using phonation and autopolymerizing acrylic resin were recorded and leveled with the lateral borders of the tongue.

Complete denture prosthodontics for a patient with Parkinson's disease using the neutral zone concept: a clinical report.

A patient with Parkinson's disease was given new dentures made by utilizing the neutral zone concept. Many modeling oral functions (including swallowing, phonation, sucking, smiling, and grimacing) and two materials were used to shape six neutral zone impressions but only one impression was deemed satisfactory for the patient. The patient's lack of neuromuscular control coupled with xerostomia made it impossible to construct a denture with perfect, absolute equilibrium and no displacement; however, denture stability was improved considerably and the patient wore the dentures for several years.

Variations in rest vertical dimension: effects of headrest in edentulous patients.

Some clinicians believe that using a headrest may result in an inaccurate rest vertical dimension (RVD) and thus alter the occlusal vertical dimension when fabricating complete dentures. This study measured the RVD established by a group of totally edentulous subjects seated in a relaxed upright position with the Frankfort Plane parallel to the horizontal and the head unsupported and compared this measurement with the RVD established when the same subjects were seated in a relaxed upright position and looking straight at the horizon with the head supported by a headrest. The mean values obtained when the head was unsupported were compared to those obtained when the head was supported by a headrest.

Variations in rest vertical dimension: effects of standing posture in edentulous patients.

The orientation of a patient's head changes, depending on whether he or she is sitting or standing in a relaxed upright position. An edentulous patient's vertical dimension at rest may show variations that can result in an inaccurate determination of his or her occlusal vertical dimension. This study recorded the rest vertical dimension (RVD) established among 60 totally edentulous subjects who were standing in the position of greatest comfort (self-balance position) and compared it with the patients' RVD when they were seated in a relaxed upright position, with the Frankfort Plane parallel to the horizontal.

Morphologic comparison of two neutral zone impression techniques: a pilot study.

Statement Of Problem: Several studies have compared dentures fabricated using neutral zone and conventional techniques. However, studies comparing swallowing and phonetic techniques for assessing the location and shape of the neutral zone could not be identified in the literature.

Purpose: The purpose of this pilot study was to compare the outline form of the phonetic and swallowing neutral zone impression techniques for the same subjects.