کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10431886 910230 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Towards a viscoelastic model for the unfused midpalatal suture: Development and validation using the midsagittal suture in New Zealand white Rabbits
ترجمه فارسی عنوان
به سوی یک مدل ویسکلوالاستیک برای نخ بخیه ناپدید شده میان پالان: توسعه و اعتبارسنجی با استفاده از درزهای مادیگیتال در خرگوشهای سفید نیوزیلند
کلمات کلیدی
گسترش مکسیری، ابررسانای اصلاح شده ویسکوزیته کوازین لیزری، مدل برگر، روش شاپری،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
چکیده انگلیسی
Maxillary expansion treatment is a commonly used procedure by orthodontists to widen a patient's upper jaw. As this is typically performed in adolescent patients, the midpalatal suture, connective tissue adjoining the two maxilla halves, remains unfused. Studies that have investigated patient response to expansion treatment, generally through finite element analysis, have considered this suture to behave in a linear elastic manner or it was left vacant. The purpose of the study presented here was to develop a model that could represent the midpalatal suture's viscoelastic behavior. Quasilinear viscoelastic, modified superposition, Schapery's, and Burgers modeling approaches were all considered. Raw data from a previously published study using New Zealand White Rabbits was utilized for model parameter estimation and validation. In this study, Sentalloy® coil springs at load levels of 0.49 N (50 g), 0.98 N (100 g), and 1.96 N (200 g) were used to widen the midsagittal suture of live rabbits over a period of 6 weeks. Evaluation was based on a models ability to represent experimental data well over all three load sets. Ideally, a single set of model constants could be used to represent data over all loads tested. Upon completion of the analysis it was found that the modified superposition method was able to replicate experimental data within one standard deviation of the means using a single set of constants for all loads. Future work should focus on model improvement as well as prediction of treatment outcomes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 46, Issue 10, 21 June 2013, Pages 1618-1625
نویسندگان
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