지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.12
- 수록면
- 52 - 58 (7page)
이용수
초록· 키워드
오류제보하기
Purpose: Using two types of electronic apex locators, this study aimed to investigate the differences in accuracy according to the evaluator and equipment.
Materials and Methods: Artificial teeth of the lower first premolars and two mandibular acrylic models (A and B) were used in this study. In the artificial teeth, the pulp chamber was opened and the access cavity was prepared. Using calibrated digital Vernier calipers, the distance from the top of the cavity and the root apex was measured to assess the actual distance between two artificial teeth. The evaluation was conducted by 20 dentists, and each evaluator repeated measurements for each electronic apex locator five times. The difference between the actual distance from the top of the cavity to the root apex and the distance measured using electronic measuring equipment was compared. For statistical analysis, the Friedman test the Mann–Whitney U-test were conducted and the differences between groups were analyzed (α=0.05).
Result: As for the accuracy of measurement according to the two types of electronic apex locators, the value of the measurement error was 0.4753 mm in Dentaport ZX and 0.3321 mm in E-Cube Plus. Moreover, electronic apex locators Dentaport ZX and E-Cube Plus showed statistically significant differences (P<0.05). As for the difference in the accuracy of the two types of electronic apex locators according to the evaluator, the resulting values differed depending on the evaluator and showed a statistically significant difference (P<0.001).
Conclusion: Electronic apex locator E-Cube Plus showed higher accuracy than did Dentaport ZX. Nevertheless, both types of electronic apex locators showed 100% accuracy in finding the region within root apex ±0.5 mm zone. Furthermore, according to the evaluator, the two electronic apex locators showed different resulting values.
Materials and Methods: Artificial teeth of the lower first premolars and two mandibular acrylic models (A and B) were used in this study. In the artificial teeth, the pulp chamber was opened and the access cavity was prepared. Using calibrated digital Vernier calipers, the distance from the top of the cavity and the root apex was measured to assess the actual distance between two artificial teeth. The evaluation was conducted by 20 dentists, and each evaluator repeated measurements for each electronic apex locator five times. The difference between the actual distance from the top of the cavity to the root apex and the distance measured using electronic measuring equipment was compared. For statistical analysis, the Friedman test the Mann–Whitney U-test were conducted and the differences between groups were analyzed (α=0.05).
Result: As for the accuracy of measurement according to the two types of electronic apex locators, the value of the measurement error was 0.4753 mm in Dentaport ZX and 0.3321 mm in E-Cube Plus. Moreover, electronic apex locators Dentaport ZX and E-Cube Plus showed statistically significant differences (P<0.05). As for the difference in the accuracy of the two types of electronic apex locators according to the evaluator, the resulting values differed depending on the evaluator and showed a statistically significant difference (P<0.001).
Conclusion: Electronic apex locator E-Cube Plus showed higher accuracy than did Dentaport ZX. Nevertheless, both types of electronic apex locators showed 100% accuracy in finding the region within root apex ±0.5 mm zone. Furthermore, according to the evaluator, the two electronic apex locators showed different resulting values.
목차
Introduction
Materials and Methods
Result
Discussion
Conclusion
References
참고문헌 (25)
참고문헌 신청
Seltzer S / 1968 / Biologic aspects of endodontics. 3. Periapical tissue reactions to root canal instrumentation / Oral Surg Oral Med Oral Pathol 26:694~705
Kim E / 2004 / Electronic apex locator / Dent Clin North Am 48:35~54
장훈상 / 2012 / 서로 다른 근관세척제에서 전자 근관장 측정기의 정확도 평가 / 구강회복응용과학지 28(2):139~145
박신영 / 2012 / 주근단공의 조건에 따른 Root ZX의 정확성 평가 / Restorative Dentistry and Endodontics 37(2):68~73
Seltzer S / 1969 / Biologic aspects of endodontics. IV. Periapical tissue reactions to root-filled teeth whose canals had been instrumented short of their apices / Oral Surg Oral Med Oral Pathol 28:724~738
Kim E / 2004 / Electronic apex locator / Dent Clin North Am 48:35~54
장훈상 / 2012 / 서로 다른 근관세척제에서 전자 근관장 측정기의 정확도 평가 / 구강회복응용과학지 28(2):139~145
박신영 / 2012 / 주근단공의 조건에 따른 Root ZX의 정확성 평가 / Restorative Dentistry and Endodontics 37(2):68~73
Seltzer S / 1969 / Biologic aspects of endodontics. IV. Periapical tissue reactions to root-filled teeth whose canals had been instrumented short of their apices / Oral Surg Oral Med Oral Pathol 28:724~738
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