objective: this study was designed to compare the stress produced at the pdl of abutment teeth with two angles of cervical convergence, in otherwise similar settings. materials and methods: two finite element models were designed for a second premolar and a removable partial denture frame containing an i-bar clasp. maximum principal stress (s1) and von mises stress (seqv) were assessed along a ...

An analysis of stress distributions within circumferential clasp arms with various tapers, was undertaken in an effort to (1) determine the area of maximum stress concentration in both tapered and non-tapered clasps, and (2) to compare this point of maximum stress concentration with the area of frequent clasp breakage. The non-tapered clasp showed better distribution of stresses than the tapere...

The purpose of this study is to develop a rational fabricating system for determining retentive force of cast clasps. The radius of curvature of a circumferential clasp arm is considered to be one of the important factors affecting dynamical properties of cast clasps. In this study, a device for determining the radius of curvature and a computer system for Akers clasps and I-bar clasps were dev...

OBJECTIVES To investigate the knowledge and appropriateness of practices relating to RPD clasps of dentists working in NWFP. STUDY DESIGN & SETTING A questionnaire-based-survey conducted at the Department of Prosthodontics, Khyber College of Dentistry Peshawar. SUBJECTS & METHODS Participant's qualifications, experience in dental practice and the proportions of practice time they devoted to...

Controlling microtubule dynamics and spatial organization is a fundamental requirement of eukaryotic cell function. Members of the ORBIT/MAST/CLASP family of microtubule-associated proteins associate with the plus ends of microtubules, where they promote the addition of tubulin subunits into attached kinetochore fibers during mitosis and stabilize microtubules in the vicinity of the plasma memb...

OBJECTIVE The purpose of this study was to investigate the importance of environments (dry and wet) to dislodge the clasp. MATERIALS AND METHODS Mandibular test models with natural premolar and molar teeth were used to test four types of clasp (each 12) (Akers, rest plate Akers [RPA], half and half [H-H], and ring clasp) in dry and natural fresh saliva environments. Each clasp was pulled out ...

Clinical observations at the University of Washington indicated that the wrought wire clasp assembly, the I-bar clasp assembly, and the L-bar clasp assembly yield similar results. A periodic recall system for patients with removable partial dentures has been in effect since 1976. Several thousand observations have been made by the faculty, and no special trend of problems has been noted that wo...