In this paper a surgical robotic device is described that is able to discriminate tissue interfaces and other controlling parameters ahead of the drill tip. The advantage in surgery is that tissues at interfaces can be preserved. The smart tool detects ahead of the tool point and is able to control interaction with respect to the flexing tissue to avoid penetration or to control the extent of p...

STATEMENT OF PROBLEM Primary stability at the time of implant placement is related to the level of primary bone contact. The level of bone contact with implant is affected by thread design, surgical procedure and bone quality, etc. PURPOSE The aim of this study was to compare the initial stability of the various taper implants according to the thread designs, half of which were engaged to inf...

The drilling of bone is ubiquitous in many fields of surgery including orthopaedics, neurosurgery, plastics and reconstructive, craniomaxillofacial and ear nose and throat (ENT). A cylindrical tunnel is typically prepared in bone using a surgical drill-bit to accommodate a screw or other threaded device for rigid fixation which is provided by the integration of bone (cancellous and/or cortical)...

BACKGROUND In anterior cruciate ligament reconstruction performed using cortical button fixation on the femur, we have observed a "wobble" effect that can occur when a cannulated femoral drill is used over a guide pin that is not securely fixed in bone. Our study assessed the effect of drill "wobble" on femoral tunnel aperture in sawbones. METHODS Femoral tunnels were drilled in sawbones, whi...

Objective: To determine the relationship of sensori neural hearing loss and surgery for chronic otitis media. Methodology: This study was designed as a clinical trial on 90 patients with chronic otitis media (COM), who were admitted in hospital for Tympanoplasty and Mastoidectomy who were selected for the study. A pre and post, bone conduction hearing test was performed in frequencies 250 to 40...

Insertion guides are becoming popular for orthodontic mini-implant positioning. The aim of this study was to evaluate and compare the accuracy two different insertion guides, with or without pre-drilling, in a human cadaveric model. Maxillary casts six fresh frozen specimens were digitized create guides. Sixty mini-implants randomly inserted full-arch skeletonized either predrilling. Pre- post-...