Abstract
Introduction Immediate implant loading in the edentulous mandible is supported by numerous studies demonstrating predictability and a success rate similar to or even greater than the conventional load. The purpose of this article was to report a protocolised technique that places four to six rough-surface implants in the mandible by means of a translucent transference guide. Methodology The use of this device simplifies the location of implants, their transference and the taking of aesthetic and intermaxillary records. Screwed prosthesis was done by the dental technician, and the implants were loaded within 72 h. This article describes the presurgical, surgical and prosthetic stages, elaboration of the prosthesis, installation and subsequent tests. A total of 20 patients (111 implants) were placed with this protocol and were controlled for 18 months (+3). The survival rate of the implants was 100%, and the prosthetic success was 95%. Conclusion This technique along with the translucent guide allows simplifying pickup impressions and intermaxillary registration, providing more accuracy when fabricating transitional prosthesis and its final result.
Highlights
Immediate implant loading in the edentulous mandible is supported by numerous studies demonstrating predictability and a success rate similar to or even greater than the conventional load
One of the reasons was the belief that immediate loading ‘per se’ was responsible for the fibrous encapsulation around implants instead of direct bone apposition[2], even though this justification was described as empiric[3]
It was established that the causing factor of fibrous encapsulation was an excess of forces at the bone–implant interface[4]; those slight or moderate forces should not exceed the micromotion threshold admitted by this interface to decrease wound healing times and improve bone quality[5]
Summary
Immediate implant loading in the edentulous mandible is supported by numerous studies demonstrating predictability and a success rate similar to or even greater than the conventional load. The survival rate of the implants was 100%, and the prosthetic success was 95% Conclusion This technique along with the translucent guide allows simplifying pickup impressions and intermaxillary. It was established that the causing factor of fibrous encapsulation was an excess of forces at the bone–implant interface[4]; those slight or moderate forces should not exceed the micromotion threshold admitted by this interface to decrease wound healing times and improve bone quality[5]. For roughsurface implants, this micromotion threshold is in the range of 50–150 mm[6,7]. That is to say that one of the main reasons why immediate loading implants have shown a low success rate in these first studies was the lack of knowledge with regard to the necessary biological and mechanical principles that today are well known to obtain clinical success.
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