Luís Cláudio Aranha, Doctor of Science in Materials Sciences (Biomaterials focus) IPEN / USP-SP. Master and Specialist in Oral Maxillofacial Surgery and Traumatology, Camilo Castelo Branco University. Graduated in Dentistry, Pontifical Catholic University of Campinas. 1st Lieutenant Dentist of the Brazilian Army Reserve. He is currently coordinator of the Specialization Course in Implant Dentistry at the Faculty of Dentistry of APCD, Coordinator of courses in Implant Dentistry at the School of Professional Development at the Association of Dental Surgeons of Campinas (ACDC). Researcher Collaborator focusing on biomaterials at the Center for Materials Science and Technology of the Nuclear and Energy Research Institute - IPEN. He also works as a scientific consultant in the field of biomaterials. He has experience in the area of dentistry with emphasis on implant dentistry, implant prosthesis and buco-maxillo-facial surgery. He was president and founder of the Health Committee of the American Chamber of Commerce of Campinas.
Luís Cláudio Aranha
Instituto de Pesquisas Energéticas e Nucleares (IPEN)
Oral rehabilitation through osseointegrated dental implants has been a major milestone in dentistry. Characterization and understanding of the properties of this biomaterial has been a great incentive in research. The stability between the two pieces, intraosseous screw and prosthetic abutment, is of paramount importance in the guarantee of longevity in these rehabilitations. Dynamic tests, simulating masticatory action on this device demonstrating the indications within safe limits are necessary. This work analyzed the torque and distorque of these parts with and without fatigue tests, according to ISO 14801. In this analysis it was used an electronic micro torquemeter, built in house, which captures data through strain gages, then processing data through National Instruments software. This allowed the obtention of data with quality and quantity meaning accurate results. The results showed, in all cases, that the threaded parts suffer a loss of torque when the torque was measured after chewing simulation.