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ePaper created 2017-04-20, 12:07:17 | version 1.38.0
implants_one-piece implants Ryc. 6Aa Ryc. 6Ab Ryc. 6Ac Ryc. 6Ad Ryc. 6Ba Ryc. 6Bb Ryc. 6Bc Ryc. 6Aa mainly by pre-implant bone reabsorption, a well- -known phenomenon that we have already men- tioned. In particular we noticed that the bone reabsorption cone appears in 76% of patients in the irst group (68% of the positioned implants), but only 23% in subjects rehabilitated with im- mediate loading (17% of the positioned implants). In order to have a detailed analysis of the case studies, we prefer to postpone this to our next publication. However, in a preliminary study we can see a noticeable diference between the (long-term) results of the two techniques. This observation, only surprising in appearance, can be explained with relative ease if the radiological evaluations are connected to the a few simple, basic biomechanical notions, topics that we will consider very concisely further on. _Diagnostic imaging and biomechanical correlations First of all, it is important to stress that before any implant rehabilitation is carried out, even the simplest, it is necessary to request a TC-Dental scan. This diagnostic exam is the only one able to provide information regarding the quantity of available bone and to classify the latter in a known category, based on its qualitative charac- teristics.12 Apart from being a unique diagnostic auxilia- ry, not to be considered lightly, the TC scan also has a relevant legal-medical bearing. In fact, in the case of litigation, it represents an element of defense for the dental surgeon who is, it is worth Fig. 6a_Rehabilitation of the superior arch using the classic technique in immediate loading. There are 11 self-tapping screws, stabilized by a bar during the same surgical moment and functionalized immediately after. b. Mono-phase implant welded to a Scialom needle, in immediate loading. X-ray after 13 years. implants 4_2016 4949