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1392/8/5، جلد ۱۰، شماره ۶، صفحات -
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژههای فارسی مقاله |
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| عنوان انگلیسی |
Evaluation of Two New Electronic Apex-Locator-Controlled Handpieces Using a NiTi Rotary File: An In Vitro Study |
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| چکیده انگلیسی مقاله |
Objectives: The aim of this in-vitro study was to compare the accuracy of two new electronic apex-locator controlled handpieces (EALH s ) using the first rotary M two file while rotating in the canal. Materials and Methods: A total of 36 extracted mandibular molar teeth were selected. The lengths of the mesio-buccal canals to the major foramina were measured directly using a size 10 K-file introduced in the canal until the tip was visible under a loupe and then 0.5 mm was subtracted from the recorded lengths as the actual working lengths (AWL s ). Subsequently, the teeth were randomly assigned to two groups and embedded in an alginate model. Auto-stop function of the EALH s was preset at ‘‘0.5’’ mark and then electrical working lengths (EWL s ) in groups 1 and 2 were recorded by VDW GOLD and Dentaport ZX, respectively. Analysis of variance (ANOVA, 1-way) and Tukey pairwise multiple comparison intervals (0.05) were used to compare the accuracy of the two electronic devices. Results: For VDW GOLD, 61.1% of the measurements were within ±0.5 mm and 88.9% were within ±1 mm of the AWL. For Dentaport ZX, 88.9% of the measurements were within ±0.5 mm and 94.4% were within ±1mm of the AWL. There was no significant difference between AWL s and EWL s (p=0.466 for Dentaport ZX and p=0.283 for VDW Gold) and between the accuracy of the two devices in determining the EWL (p=0.8). Conclusion: Both Dentaport ZX and VDW Gold were suitable for determining working length using a rotary file. To avoid over instrumenting the canal, we recommend setting the devices to automatically stop or reverse the rotary file at 1 mm level. Key Words: Accuracy; Apex-Locator-Controlled Handpiece; Dentaport Zx Device; Mtwo Rotary File System, VDW Gold Device |
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| کلیدواژههای انگلیسی مقاله |
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| نویسندگان مقاله |
3468---3469--- |
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| نشانی اینترنتی |
http://jdt.tums.ac.ir/index.php/jdt/article/viewArticle/1071 |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
Original |
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