بررسی آناتومی کانال ریشه‌ی اینسایزورهای مندیبل با استفاده از توموگرافی کامپیوتری با اشعه‌ی مخروطی‌‌‌ در جمعیتی از شمال ایران

ﻣﻘﺪﻣﻪ: درﻣﺎن رﯾﺸﻪی ﻣﻮﻓﻖ ﻧﯿﺎزﻣﻨﺪ آﮔﺎﻫﯽ از آﻧﺎﺗﻮﻣﯽ ﺳﯿﺴﺘﻢ ﮐﺎﻧﺎل رﯾﺸﻪ و ﭘﺎﮐﺴﺎزی ﮐﺎﻣﻞ آن ﻣﯽﺑﺎﺷﺪ.ﺑﻨﺎﺑﺮاﯾﻦ ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ اﺣﺘﻤﺎل وﺟﻮد ﮐﺎﻧﺎل اﺿﺎﻓﻪ در اﻧﺴﯿﺰورﻫﺎی ﻣﻨﺪﯾﺒﻞ، ﯾﺎﻓﺘﻦ و دﺑﺮﯾﺪﻣﺎن ﮐﺎﻣﻞ اﯾﻦ ﮐﺎﻧﺎل ﺑﺴﯿﺎر ﻣﻬﻢ اﺳﺖ. از اﯾﻦ رو در اﯾﻦ ﻣﻄﺎﻟﻌﻪ ﺑﻪ ﺑﺮرﺳﯽ آﻧﺎﺗﻮﻣﯽ ﮐﺎﻧﺎل رﯾﺸﻪ دﻧﺪانﻫﺎی اﻧﺴﺎﯾﺰور ﻣﻨﺪﯾﺒﻞ در ﺟﻤﻌﯿﺘﯽ از ﺷﻤﺎل اﯾﺮان ﺑﺎ اﺳﺘﻔﺎده cbct ﭘﺮداﺧﺘﯿﻢ. ﻣﻮاد و روشﻫﺎ: در اﯾﻦ ﻣﻄﺎﻟﻌﻪ ﺗﻮﺻﯿﻔﯽ ﺗﺤﻠﯿﻠﯽ و ﻣﻘﻄﻌﯽ، ازﺗﺼﺎوﯾﺮ cbct ﯾﮏ ﻣﻄﺐ ﺧﺼﻮﺻﯽ اﺳﺘﻔﺎده ﺷﺪ . در ﻣﺠﻤﻮع 606 دﻧﺪان ﻣﻨﺪﯾﺒﻞ از ﺳﻪ ﺑﻌﺪ ﺳﺎﺟﯿﺘﺎل ﺗﻌﺪاد رﯾﺸﻪ، ﺗﺎﯾﭗ ﮐﺎﻧﺎل، اﻧﺤﺮاف ﻓﻮراﻣﻦ اﭘﯿﮑﺎل از اﭘﮑﺲ رادﯾﻮﮔﺮاﻓﯿﮏ ، ﮐﺮوﻧﺎل اﻧﺤﺮاف ﻓﻮراﻣﻦ اﭘﯿﮑﺎل از اﭘﮑﺲ رادﯾﻮﮔﺮاﻓﯿﮏ و آﮔﺰﯾﺎل ﺗﺎﯾﭗ ﮐﺎﻧﺎل ارزﯾﺎﺑﯽ ﺷﺪﻧﺪ . ورود داده ﻫﺎ در ﻧﺮم اﻓﺰار spss ﺑﺎ وﯾﺮاﯾﺶ 16 اﻧﺠﺎم ﮔﺮﻓﺖ و ﺗﺠﺰﯾﻪ و ﺗﺤﻠﯿﻞ داده ﻫﺎ ﺑﺎ اﺳﺘﻔﺎده از درﺻﺪ ﻓﺮاواﻧﯽ و آزﻣﻮن ﮐﺎی دو اراﯾﻪ ﺷﺪ. ﻣﻮارد ﮐﻤﺘﺮ از 0/05 ﻣﻌﻨﺎدار در ﻧﻈﺮ ﮔﺮﻓﺘﻪ ﺷﺪ. ﯾﺎﻓﺘﻪﻫﺎ: ﻣﯿﺎﻧﮕﯿﻦ اﻧﺤﺮاف ﻓﻮراﻣﻦ اﭘﯿﮑﺎل از اﭘﮑﺲ رادﯾﻮﮔﺮاﻓﯿﮏ 0/296 ± 0/431 ﻣﯿﻠﯽﻣﺘﺮ ﺑﻮد. ﺗﻨﻬﺎ 1 دﻧﺪان دو رﯾﺸﻪ ﻣﺸﺎﻫﺪه ﺷﺪ. 34/5 درﺻﺪ دﻧﺪانﻫﺎ دو ﮐﺎﻧﺎل ﺑﻮد. ﻣﻮرﻓﻮﻟﻮژی ﮐﻼس 1 و 3 ورﺗﻮﭼﯽ ﺑﯿﺸﺘﺮﯾﻦ ﺷﯿﻮع را داﺷﺘﻨﺪ و ﺳﺎﯾﺮ ﮐﻼسﻫﺎ ﺣﺪود 1/5 درﺻﺪ ﻧﻤﻮﻧﻪﻫﺎ را ﺷﺎﻣﻞ ﺷﺪﻧﺪ. ﻧﺘﯿﺠﻪﮔﯿﺮی: ﺑﺮ اﺳﺎس ﯾﺎﻓﺘﻪ ﻫﺎی اﯾﻦ ﻣﻄﺎﻟﻌﻪ، اﻧﺴﯿﺰورﻫﺎی ﻣﻨﺪﯾﺒﻞ در ﺟﻤﻌﯿﺖ زﻧﺎن و ﻣﺮدان ﺑﯿﺸﺘﺮ ﺗﮏ رﯾﺸﻪ و ﺗﮏ ﮐﺎﻧﺎل ﺑﻮدﻧﺪ و از ﻧﻈﺮ ﻃﺒﻘﻪ ﻨﺪی ورﺗﻮﭼﯽ ﺑﯿﺸﺘﺮﯾﻦ ﺷﯿﻮع ﻣﺮﺑﻮط ﺑﻪ ﺗﺎﯾﭗi ﺑﻮد.

evaluation of root canal anatomy of mandibular incisors using cone beam computed tomography in an iranian northern population

successful root canal therapy requires a competent knowledge of root canal anatomy and thorough purging of infectious tissue from the root canal system. due to the prevalence of accessory canals in mandibular incisors, it is important to find and completely disinfect these canals. the purpose of this study was to investigate the anatomy of the root canal of mandibular incisor teeth using cone beam computed tomography cbct .material & methods: in this descriptive analytical cross-sectional study, cbct images of a private clinic were evaluated in sagittal number of roots, type of canal, apical foramen deviation from radiographic apex , coronal apical foramen deviation from radiographic apex and axial dimensions type of canal . data were analyzed in spss software through descriptive statistics using frequency distribution and chi-square test. p 0/05was considered statistically significant.results: in this study, 606 mandibular incisor teeth were examined. the mean deviation of apical foramen from the radiographic apex was 0.431 ± 0.296 mm. only one double-rooted tooth was observed. 34.5% of the teeth were double-canaled and 65.5% were single-canaled. the most common root canal configuration was vertucci type i followed by type iii. other root canal classifications comprised about 1.5% of the samples.conclusion: according to the obtained results, mandibular incisors in females and males are more likely to be single-rooted and have only one canal. the most common root canal configuration was vertucci type i.