PURPOSE The riegel and swing-lock attachments are excellent retainers in terms of secure retention, but the former requires a great volume of abutment tooth reduction and the latter has problems with aesthetics and abrasion. In contrast, the RPI and RPA clasps have been highly appreciated as excellent retainers for abutment tooth protection, but any retentive forces are needed. Thus, the purpos...

OBJECTIVE The aim of this in vitro study was to determine the load and deflection at failure of different lingual retainers bonded with composite to enamel in a standardized three-point bending test. The results were rationalized with finite element analysis (FEA) models. MATERIALS AND METHODS Four types of multistranded wires, Dead Soft Respond, Twisted ligature, Penta-One, Gold-plated Penta...

Quaternary ammonium methacryloxy silicate (QAMS)-containing acrylic resin demonstrated contact-killing antimicrobial ability in vitro after three months of water storage. The objective of the present double-blind randomised clinical trial was to determine the in vivo antimicrobial efficacy of QAMS-containing orthodontic acrylic by using custom-made removable retainers that were worn intraorally...

PURPOSE The purpose of this study was to evaluate the effect of differences in the retainer design on load on abutment teeth and displacement of the denture base in mandibular unilateral extension base partial removable dental prosthesis to determine the optimum design for a mechanically appropriate retainer. METHODS Three models were used. Each incorporating a removable denture with differen...

The purpose of this study was to evaluate the degree and amount of movement of the abutment tooth and denture base influenced by the direct retainer of distal extension removable partial denture and the location of functional loading, then to suggest direct retainer design with minimal adverse effect and with optimum functional loading location for residual tissue. The displacement of the abutm...

The first purpose of this study is to provide more excellent characteristics to hide the metal color of an adhesion bridge's retainer for an adhesive resin 'Panavia '. This metal color hiding effect was attained by adding titanium dioxide and other inorganic tints in it. Secondly, the tensile adhesive strength and the adhesive durability of the adhesive opaque resin were compared with 'Panavia'...

PATIENT A fifty-two-year old female patient visited our dental hospital due to periodontal disease and aesthetic complaint by median diastema. A resin bonded retainer for the upper anterior teeth was placed after periodontal treatment and minor tooth movement. Median diastema and periodontal disease have not relapsed for these 6 years. DISCUSSION Prosthetic treatment combined with minor tooth...

This article is an overview of the biomechanics and advantages of telescopic retainers. Telescopic retainers offer more possibilities than any other treatment modality available in modern dentistry. Telescopic implant fixtures make the already versatile technique even more flexible. Telescopes should not be forgotten as a treatment modality, but should be embraced as a great option.