Please activate JavaScript!
Please install Adobe Flash Player, click here for download

Dental Tribune Middle East & Africa Edition July-August 2015

Dental Tribune Middle East & Africa Edition | July-August 2015 29implant tribune < Page 28 Rabih Abi Nader, DDS, Lebanon MSc Oral Surg. and Implantol- ogy, Dipl. Patho. Oral. rader680@hotmail.com Carine Tabarani, DDS, Lebanon MSc Oral Surg. and Implantol- ogy, Dipl. Patho. Oral. ctabarani@hotmail.com Contact Information Figure 14: Periapical ra- diograph taken at the final examination. Figure 17: Four years follow up showing satisfying esthetic results. Figure 15: The final crown was delivered af- ter the temporary prosthesis was in function for four months. Figure 16: Clinical photograph showing permanent prosthesis in function after four months of temporary provisional crown. den). All RFA measurments were performed at implant level immediately after implant placement. The high ISQ value indicated high stability and therefore possibility of immedi- ate loading. It is well known that failing im- plants show a continuous de- crease of stability until failure. Low RFA (resonance frequency analysis) levels after 1 and 2 months seem to indicate an in- creased risk for future failure. This information may be used to avoid implant failure in the fu- ture by unloading implants with decreasing degree of stability with time as diagnosed with the RFA technique.2 The previous cases in this arti- cle show that the use of single implants in anterior maxilla for immediate loading of a fixed temporary crown is a viable op- tion for implant treatment of the edentulous anterior maxilla, at least when good primary im- plant stability can be ensured by an insertion torque of 30 N/cm and ISQ controlled not less than 65 N/cm. Strong correlations were observed between bone density, insertion torque and im- plant stability values at implant placement in anterior maxilla9,10 in the present cases and were consistent with the previous study by Turkyilmaz et al.22 In a study published by Glauser and al where they inserted 81 implants in 23 patients for im- mediate and early loading.2 At one month follow-up recall, RFA values were significantly higher for the successful implants and it showed slightly decrease af- ter implant placement then re- mained stable or increased after a certain period of time. The purpose of this clinical case report was to clinically evalu- ate the outcome of the implant insertion torque and stability of directly loaded implants af- ter using immediate placement technique in the anterior max- illa. Within the limitations of this article, the immediate loading technique seems to be a viable option in the esthetically com- promised anterior areas of the maxilla. Conclusion Given the two clinical cases, and considering the clinical evidenced based parameters, immediate provisional crowns should be proposed with im- mediate implant placement if an appropriate initial insertion torque of 30N/cm and stability quotient (ISQ) not less than 65. Immediate loading of implant- supported restorations replac- ing single missing teeth is con- sidered a successful procedure. A significant correlation was found between bone density and implant stability parameters that indicates that clinicians may predict the primary stability be- fore the final prosthesis is placed and they modify their treatment dependent on each relevant pa- rameter. References 1. Ottoni JM. Correlation be- tween placement torque and survival of single tooth implants. Int J of Oral & Maxillofacial im- plants 2005;20(5):769-76. 2. Glauser R. Resonance fre- quency analysis of implants subjected to immediate or early functional occlusal loading. Clinical Oral Implants Research 2004; 15(4): 428-34. 3. Eriksson AR, Albrektsson T. Heat caused by drilling cortical bone. Temperature measured in vivo in patients and animals. Acta Orthop Scand 1984;55: 629- 31. Editorial note: The full list of references avaiable from the publisher

Pages Overview