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Page 1
Torque and pullout analysis of six currently available self-tapping and "emergency" screws.
Boyle JM 3rd, Frost DE, Foley WL, Grady JJ. Boyle JM 3rd, et al. J Oral Maxillofac Surg. 1993 Jan;51(1):45-50. doi: 10.1016/s0278-2391(10)80389-1. J Oral Maxillofac Surg. 1993. PMID: 8419573
Insertional torque (IT), stripping torque (ST), and uniaxial pullout tests were performed to evaluate the effectiveness of six screw systems (Wurzburg, Techmedica, Synthes, Timesh, Steinhouser, Luhr) in thin porcine rib. The Timesh 2.2-mm self-tapping screw produced the la …
Insertional torque (IT), stripping torque (ST), and uniaxial pullout tests were performed to evaluate the effectiveness of six screw systems …
Biomechanical properties of small bone screws.
You ZH, Bell WH, Schneiderman ED, Ashman RB. You ZH, et al. J Oral Maxillofac Surg. 1994 Dec;52(12):1293-302. doi: 10.1016/0278-2391(94)90052-3. J Oral Maxillofac Surg. 1994. PMID: 7965333

When all screws were considered together for a particular bone thickness, torque was strongly predicted by screw diameter (MT: r = .94, P < .001; IT: r = 0.92, P < .001). Screws with the same diameters varied significantly in IT because of differences in self-

…
When all screws were considered together for a particular bone thickness, torque was strongly predicted by screw diameter (MT: r = .9 …
TAPPING PILOT HOLE: MECHANICAL ANALYSIS OF SHEEP VERTEBRA AND THE ARTIFICIAL BONE MODEL.
Silva P, Rosa RC, Shimano AC, de Paula FJ, Volpon JB, Defino HL. Silva P, et al. Rev Bras Ortop. 2015 Nov 17;45(3):290-4. doi: 10.1016/S2255-4971(15)30371-2. eCollection 2010 May-Jun. Rev Bras Ortop. 2015. PMID: 27022555 Free PMC article.
OBJECTIVE: To determine the effect of pilot hole tapping, together with other variables such as pilot hole diameter, in relation to inner screw diameter and preparation method, on the insertion torque and pullout resistance of the screws used for anterior fix …
OBJECTIVE: To determine the effect of pilot hole tapping, together with other variables such as pilot hole diameter, in relati …
Biomechanical finite element analysis of self-tapping implants with different dimensions inserted in two bone qualities.
Hasan I, Heinemann F, Bourauel C. Hasan I, et al. Biomed Tech (Berl). 2014 Jun;59(3):203-12. doi: 10.1515/bmt-2013-0109. Biomed Tech (Berl). 2014. PMID: 24695023
Using finite element analysis, a series of self-tapping implants with different diameters and lengths have been analysed with respect to their load transfer to the alveolar bone under axial and 45 loading conditions with a total force of 300 N. ...The implants were …
Using finite element analysis, a series of self-tapping implants with different diameters and lengths have been analysed with …
[Insertion of min-screws: with or without pre-drilling?].
Massif L, Frapier L, Micallef JP. Massif L, et al. Orthod Fr. 2007 Jun;78(2):123-32. doi: 10.1051/orthodfr:2007009. Epub 2007 Jun 21. Orthod Fr. 2007. PMID: 17580065 French.
This having short-term effects on the primary stability of the mini-screws and long-term effects on their maintenance. MATERIALS AND METHODS: two self-drilling and self-tapping mini-screws Aarhus Medicon of 1.6 and 1.3 mm diameters are screwed with a manual screwdri …
This having short-term effects on the primary stability of the mini-screws and long-term effects on their maintenance. MATERIALS AND METHODS …
Microstructured lipid microparticles containing anthocyanins: Production, characterization, storage, and resistance to the gastrointestinal tract.
de Abreu Figueiredo J, Norcino LB, do Carmo EL, Campelo PH, Botrel DA, Borges SV, de Souza SM, de Oliveira CR. de Abreu Figueiredo J, et al. Food Res Int. 2023 Apr;166:112611. doi: 10.1016/j.foodres.2023.112611. Epub 2023 Feb 17. Food Res Int. 2023. PMID: 36914355
The microparticles were evaluated for thermal behavior by DSC, polymorphism, FTIR, size distribution and particle diameter, bulk density, tapped density, flow properties, morphology, phenolic compounds content, antioxidant capacity, and retention of anthocyanins. .. …
The microparticles were evaluated for thermal behavior by DSC, polymorphism, FTIR, size distribution and particle diameter, bulk dens …
Influence of Screw-Hole Defect Size on the Biomechanical Properties of Feline Femora in an Ex Vivo Model.
Hoon QJ, Wang T, Hall E, Walsh WR, Johnson KA. Hoon QJ, et al. Vet Comp Orthop Traumatol. 2022 Jan;35(1):33-46. doi: 10.1055/s-0041-1735551. Epub 2021 Sep 6. Vet Comp Orthop Traumatol. 2022. PMID: 34488233
No significant differences in stiffness and load/torque-to-failure were noted with increasing deficit sizes in all loading conditions. Screw-hole (2.7 mm) defects up to 33% bone diameter had a maximum of 20% reduction in bending and torsional strength compared with …
No significant differences in stiffness and load/torque-to-failure were noted with increasing deficit sizes in all loading conditions. Screw …
Heat generation during implant site preparation: an in vitro study.
Cordioli G, Majzoub Z. Cordioli G, et al. Int J Oral Maxillofac Implants. 1997 Mar-Apr;12(2):186-93. Int J Oral Maxillofac Implants. 1997. PMID: 9109268
Rotary cutting was performed with 10-mm-long twist drills (2- and 3-mm diameter) and triflute drills (3.3- and 4-mm diameter) running at 1,500 rpm with external irrigation. ...No statistically significant differences could be found between the maximum tempera …
Rotary cutting was performed with 10-mm-long twist drills (2- and 3-mm diameter) and triflute drills (3.3- and 4-mm diameter) …
DNA height in scanning force microscopy.
Moreno-Herrero F, Colchero J, Baró AM. Moreno-Herrero F, et al. Ultramicroscopy. 2003 Aug;96(2):167-74. doi: 10.1016/S0304-3991(03)00004-4. Ultramicroscopy. 2003. PMID: 12672567 Free article.
Height measurements of DNA in air using tapping mode reveal a height of 0.7+/-0.2nm. This value increases up to 1.5+/-0.2nm when the salt layer, in which the molecules are embedded, is removed. Jumping experiments in water give a value of 1.4+/-0.3nm when the maximum …
Height measurements of DNA in air using tapping mode reveal a height of 0.7+/-0.2nm. This value increases up to 1.5+/-0.2nm when the …
Macroscopic and microscopic observations of needle insertion into gels.
van Veen YR, Jahya A, Misra S. van Veen YR, et al. Proc Inst Mech Eng H. 2012 Jun;226(6):441-9. doi: 10.1177/0954411912443207. Proc Inst Mech Eng H. 2012. PMID: 22783760
For the macroscopic studies, system parameters, such as insertion velocity, needle diameter, gel elasticity, needle tip shape (including bevel angle) and insertion motion profile, are varied, while the maximum insertion force and maximum needle deflection are …
For the macroscopic studies, system parameters, such as insertion velocity, needle diameter, gel elasticity, needle tip shape (includ …
32 results