مجله دانشکده دندان‌پزشکی اصفهان

مقایسه‌ی ‌تغییر رنگ دندان‌های درمان ریشه شده با حفره‌های دستیابی استاندارد، محافظه‌کارانه و بسیار محافظه‌کارانه

نوع مقاله : مقاله‌های پژوهشی

چکیده

مقدمه: هدف از این مطالعه، مقایسه‌ی تغییر رنگ در دندان‌های قدامی درمان ریشه شده و ترمیم شده با حفرات دسترسی (Traditional endodontic cavity) TEC، (Ultraconservative “ninja” endodontic cavity) NEC و (Conservative endodontic cavity) CEC می‌باشد.
مواد و روش‌ها: در این مطالعه‌ی تجربی آزمایشگاهی، 46 دندان به سه گروه آزمایشی دوازده تایی TEC، CEC و NEC و دو گروه پنج‌تایی کنترل مثبت و منفی تقسیم گردیدند. بعد از آماده‌سازی حفرات، دندان‌ها درمان ریشه و ترمیم شدند. رنگ هر نمونه در زمان‌های قبل از کار (۰T)، پس از تهیه‌ی حفره‌ی دسترسی (۱T)، بعد از درمان ریشه و ترمیم (۲T)، بعد از یک هفته (۳T)، بعد از یک ماه (۴T)، بعد از سه ماه (۵T)، بعد از شش ماه (۶T) ثبت شد. از آنالیز تجزیه و تحلیل چند واریانس نمونه تکراری را اندازه گیری می‌کند و برای مقایسه‌ی گروه‌ها با یکدیگر از آنالیز One way ANOVA و Tukey استفاده گردید. سطح معنی‌داری معادل 0/05 = α در نظر گرفته شد.
یافته‌ها: در تمام گروه‌ها تغییرات معنی‌داری در تغییر رنگ دندان با گذشت زمان مشاهده گردید (0/01 >p value) تغییر رنگ پس از تهیه‌ی حفره و 0 پس از درمان ریشه و ترمیم در گروه NEC به صورت معنی‌داری بالاتر از گروه‌های TEC و CEC بود 012/0 = p value و 0/001 > p value و در یک هفته نیز در گروه NEC به صورت معنی‌داری بالاتر از گروه TEC بود (0/028 = p value). بیشترین میزان تغییر رنگ در گروه‌ها در ۶ ماه بود.
نتیجه‌گیری: در بازه‌های زمانی ۱، ۲ و ۶ ماه تفاوت معنی‌داری در تغییر رنگ دندان با حفره‌ی دسترسی استاندارد، محافظه‌کارانه و بسیار محافظه‌کارانه وجود نداشت.
کلید واژه‌ها: تغییر رنگ دندان؛ دندان درمان ریشه شده؛ اسپکتوفوتومتری. 

عنوان مقاله [English]

A Comparison of Tooth Discoloration Following Root Canal Treatment with Traditional, Conservative, and Ultraconservative (Ninja) Access Cavity Designs

چکیده [English]

 Introduction: This invitro study aims to compare the discoloration in endodontically treated and restored anterior teeth with a traditional endodontic cavity (TEC), conservative endodontic cavity (CEC), and “ninja” or ultraconservative (NEC) endodontic access cavity.
Materials and Methods: In this experimental laboratory study conducted in Shiraz Dental Faculty in 2018, 46 intact human maxillary anterior teeth were randomly assigned to 5 groups. Three experimental groups, TEC, CEC, NEC (n = 12), and two control groups: positive (D) and negative (E) control groups (n = 5). Discoloration was assessed at the baseline (T = 0), after preparing the access cavity (T = 1), after endodontic treatment and restoration (T = 2), after one week (T = 3), after one month (T = 4), after three months (T = 5) and after six months (T = 6). Statistical analysis was performed using multi-sample repeated measures analysis of variance, one-way ANOVA, and Tukey test.
Results: In all groups, significant changes were observed in the discoloration over time (p value < 0.05). The NEC group had a significantly higher level of discoloration in ∆E1 (after preparing access cavity) and ∆E2 (after endodontic treatment and restoration). The NEC group had a significantly higher level of discoloration in ∆E3 (1 week) than The TEC group (p value < 0.05). ∆E4 (1 month), ∆E5 (3 months), ∆E6 (6 months) were not significantly different between the three experimental groups. The highest level of discoloration pertained to ∆E6 (1 month later) in all groups.
Conclusion: Despite statistically significant differences in the groups up to the first week, there is no significant difference in tooth color change with standard, conservative, and ultraconservative access cavities in the time intervals of 1 month, two months, and six months.
Keywords: Tooth discoloration; Spectrophotometry; Endodontically treated teeth

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مجله دانشکده دندان‌پزشکی اصفهان
دوره 20، شماره 2 - شماره پیاپی 2
تیر 1403
صفحه 137-147