Placement and removal torque values of orthodontic miniscrew implants

Primary Stability of Temporary Screws after Dentary and Orthopedic Forces under Static and Dynamic Load Cycles

“…The insertion torque was also considered relevant information on the quality of bone, as shown in studies of [15,29]. On the other hand, 5 N forces as a static load imposed a significant loss of stability after 5 weeks since a reduction of 52.22% was observed.…”

“…This torsional moment is analyzed in terms of the placement torque, mainly in situations where a non-osseointegration device response is planned for temporary purposes [4,5,[15][16][17][18][22][23][24][25]. In this work, torque values were measured before and after two different loads conditions with different intensities.…”

“…In maxillofacial region, different works showed that failures in temporary screws due to its stability loss occurred when screws were placed in the thickest and densest cortical areas available, as observed in the posterior buccal region of a mandible [10][11][12][13]. Innumerous works used placement torque as an adequate method to evaluate the immediate stability after screw insertion [4,5,[14][15][16][17][18].…”

“…The advantages of temporary screws for dentary demand is presented in [11][12][13][14][15][16][17][18][19][20]. When tooth movements are desired, screws allow immediate possibility for biomechanical forces applications, which include even pull back of more than 10 teeth at once [21].…”

Fractured Miniscrew Retrieval through Flapless Vibration Technique: A Mini Review and Case Report

“…In a study, it was concluded that insertion torque is directly proportional to fracture potential of implants. 6 Incidence of miniscrew fracture ranges from 4 to 9%. 7,8 The precautions one has to take before implant placement are (1) bone density measurement using cone beam computed tomography, (2) pilot drills should be used before insertion if resistance occurred (felt), (3) torque measurement during insertion.…”