نویسندگان
گروه پروتزهای دندانی، دانشکده دندانپزشکی، دانشگاه شاهد
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Background and
Objective: Using 2 implants
in edentulous lower jaw is a standard protocol treatment for improvement of
prosthesis retention. Different attachments have been produced in factories.
One of these attachments is locator that is now a famous clinical option. In
this in vitro study, the effect of inter implant distance on retention in
simulated function condition and on 2 brands including Dio and 3i is analyzed. Materials and
Methods: In this study, 24
nylon inserts pairs were provided from dio and 3i system attachment. Then, 2
hollow blocks with parallel walls were constructed. Attachments splinted to
analogue and assembly inserted in block with GC reline materials in 2 inter
implant distances of 19 and 23 mm and parallelism has confirmed with jelenko
surveyor. The samples were assembled in zwick jaws and every sample was loaded
at 1440 cyclic loading from vertical. Data is measured at cycles of zero, 120,
360, 720, and 1440 with 34560 cyclic loading exerted. Data were analyzed with
proper statistical tests. Results and
Conclusion: The results were
analyzed with one-way analysis of variance (ANOVA). It was found out that retention value
in 23 mm distance was greater than 19 mm until 720 cycles and difference was
significant but at 1440 cycles, there was no significant difference.
کلیدواژهها [English]
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