Influence of Different Apical Preparations on Root Canal Cleanliness in Human Molars: a SEM Study
Objectives: To compare the influence of type and dimensions of the apical preparation on the cleanliness of the apical area in molars. Material and Methods: A total of 120 root canals (MB and DB root canals from 30 maxillary molars and mesial root canals from 30 mandibular molars) were instrument...
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| Format: | Article |
| Language: | English |
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Lithuanian University of Health Sciences, Faculty of Odontology
2014-07-01
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| Series: | eJournal of Oral Maxillofacial Research |
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| Online Access: | http://www.ejomr.org/JOMR/archives/2014/2/e4/v5n2e4ht.htm |
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| author | Gianluca Plotino Luigi Tocci Luca Testarelli Gianluca Gambarini |
| author_facet | Gianluca Plotino Luigi Tocci Luca Testarelli Gianluca Gambarini |
| author_sort | Gianluca Plotino |
| collection | DOAJ |
| description | Objectives: To compare the influence of type and dimensions of the apical preparation on the cleanliness of the apical area in molars.
Material and Methods: A total of 120 root canals (MB and DB root canals from 30 maxillary molars and mesial root canals from 30 mandibular molars) were instrumented with Mtwo NiTi rotary instruments to a size 25/0.06 taper and were equally divided into three different experimental groups depending on the subsequently apical root canal preparation: Group 1: no further apical preparation, Group 2: apical preparation with Mtwo files to a size 40/0.04 taper, Group 3: apical preparation with Mtwo Apical Files. All root canals were observed through scanning electron microscopy (SEM). Presence of superficial debris and smear layer was evaluated using a score system. Data were statistically analysed using the Kruskal-Wallis and Bonferroni tests with a level of significance set at P < 0.05.
Results: Kruskal-Wallis test revealed no differences among groups in the middle and coronal third (P > 0.05), while at the apical level, there was a significant difference for both residual debris and presence of smear layer between Group 1 and both Group 2 (P = 0.003 and P = 0.014) and 3 (P = 0.012 and P = 0.021), while no difference was present between Group 2 and Group 3 (P = 0.871 and P = 0.923).
Conclusions: Cleanliness of the apical third in terms of debris and smear layer was statistically better when an apical preparation was performed to a size 40/0.04 taper or with the use of the Mtwo Apical Files. |
| format | Article |
| id | doaj-art-b59852215b914822bbe28f75ed33ddcf |
| institution | Kabale University |
| issn | 2029-283X |
| language | English |
| publishDate | 2014-07-01 |
| publisher | Lithuanian University of Health Sciences, Faculty of Odontology |
| record_format | Article |
| series | eJournal of Oral Maxillofacial Research |
| spelling | doaj-art-b59852215b914822bbe28f75ed33ddcf2025-08-20T03:58:50ZengLithuanian University of Health Sciences, Faculty of OdontologyeJournal of Oral Maxillofacial Research2029-283X2014-07-0152e410.5037/jomr.2014.5204Influence of Different Apical Preparations on Root Canal Cleanliness in Human Molars: a SEM StudyGianluca PlotinoLuigi TocciLuca TestarelliGianluca GambariniObjectives: To compare the influence of type and dimensions of the apical preparation on the cleanliness of the apical area in molars. Material and Methods: A total of 120 root canals (MB and DB root canals from 30 maxillary molars and mesial root canals from 30 mandibular molars) were instrumented with Mtwo NiTi rotary instruments to a size 25/0.06 taper and were equally divided into three different experimental groups depending on the subsequently apical root canal preparation: Group 1: no further apical preparation, Group 2: apical preparation with Mtwo files to a size 40/0.04 taper, Group 3: apical preparation with Mtwo Apical Files. All root canals were observed through scanning electron microscopy (SEM). Presence of superficial debris and smear layer was evaluated using a score system. Data were statistically analysed using the Kruskal-Wallis and Bonferroni tests with a level of significance set at P < 0.05. Results: Kruskal-Wallis test revealed no differences among groups in the middle and coronal third (P > 0.05), while at the apical level, there was a significant difference for both residual debris and presence of smear layer between Group 1 and both Group 2 (P = 0.003 and P = 0.014) and 3 (P = 0.012 and P = 0.021), while no difference was present between Group 2 and Group 3 (P = 0.871 and P = 0.923). Conclusions: Cleanliness of the apical third in terms of debris and smear layer was statistically better when an apical preparation was performed to a size 40/0.04 taper or with the use of the Mtwo Apical Files.http://www.ejomr.org/JOMR/archives/2014/2/e4/v5n2e4ht.htmnickel-titanium alloyroot canal preparationscanning electron microscopy |
| spellingShingle | Gianluca Plotino Luigi Tocci Luca Testarelli Gianluca Gambarini Influence of Different Apical Preparations on Root Canal Cleanliness in Human Molars: a SEM Study eJournal of Oral Maxillofacial Research nickel-titanium alloy root canal preparation scanning electron microscopy |
| title | Influence of Different Apical Preparations on Root Canal Cleanliness in Human Molars: a SEM Study |
| title_full | Influence of Different Apical Preparations on Root Canal Cleanliness in Human Molars: a SEM Study |
| title_fullStr | Influence of Different Apical Preparations on Root Canal Cleanliness in Human Molars: a SEM Study |
| title_full_unstemmed | Influence of Different Apical Preparations on Root Canal Cleanliness in Human Molars: a SEM Study |
| title_short | Influence of Different Apical Preparations on Root Canal Cleanliness in Human Molars: a SEM Study |
| title_sort | influence of different apical preparations on root canal cleanliness in human molars a sem study |
| topic | nickel-titanium alloy root canal preparation scanning electron microscopy |
| url | http://www.ejomr.org/JOMR/archives/2014/2/e4/v5n2e4ht.htm |
| work_keys_str_mv | AT gianlucaplotino influenceofdifferentapicalpreparationsonrootcanalcleanlinessinhumanmolarsasemstudy AT luigitocci influenceofdifferentapicalpreparationsonrootcanalcleanlinessinhumanmolarsasemstudy AT lucatestarelli influenceofdifferentapicalpreparationsonrootcanalcleanlinessinhumanmolarsasemstudy AT gianlucagambarini influenceofdifferentapicalpreparationsonrootcanalcleanlinessinhumanmolarsasemstudy |