The effects of flute shape and thread profile on the insertion torque and primary stability of dental implants

Thermal evaluation by infrared measurement of implant site preparation between single and gradual drilling in artificial bone blocks of different densities

“…[23][24][25][26][27][28] These blocks are approved by the American Society for Testing and Materials and are recognized as a standard material for testing orthopaedic devices and instruments, making them ideal for the comparative testing of bone screws (ASTM F-1839-08). The solid rigid polyurethane foam (SRPF) blocks used in this study are classified according to density: D1, 0.48 g/cm 3 ; D2, 0.32 g/cm 3 ; D3, 0.16 g/cm 3 ; and D4, 0.08 g/cm 3 .…”

Evaluation of primary stability in modified implants: Analysis by resonance frequency and insertion torque

“…Wu and colleagues, 28 studied the insertion torque of cylindrical and tapered implants with notches in the apex region and related that the apex cuts facilitate insertion of the implant promoting bone shear and compaction. In the present study, all the implants presented a 18 and Sivan-Gildor and colleagues, 12 developed "hollow" implants in their inner portion and both concluded that the greater contact of the implant with the bone surface favored the success rate of these implants.…”

Combining the effects of undersized drilling and bone density on implant insertion torque

“…Besides, they present the advantage of high structural homogeneity in comparison to the other alternatives (human cadaveric bone or animal bones). Thus, these artificial bone blocks have already been used successfully in previous studies 4,[15][16][17][18][19][20] . Concerning the evaluation method to assess the implant primary stability, several noninvasive techniques have been tested in scientific literature.…”