Prevalence of Various Anatomic Variations in Cross-sectioned Apices of Maxillary Second Molars in Korean and Their Effect on Canal Cleanliness (한국인의 상악 제 2대구치 치근단면 형태에 대한 연구)
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- The Journal of the Korean dental association
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- v.56 no.2
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- pp.84-93
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- 2018