Poster Presentation

Poster Presentation

PR41 - Incidence of Mid-Mesial Canals Based on Distance Between Mesial Canal Orifi in Mandibular Molars: A Clinical and CBCT Analysis

Thursday, April 26
10:00 AM - 1:00 PM
Room: Exhibit Hall

This study evaluated the presence of mid-mesial canals (MMCs) in a random sample of mandibular molars, and the relationship between them and intra-canal distance between mesio-buccal (MB) and mesio-lingual (ML) canal orifi. Fifty-one extracted mandibular molars were divided into samples of three to four teeth, mounted in plaster and boxing wax, then immersed in water prior to CBCT scans. Two endodontics residents completed access openings. Teeth and CBCTs were interpreted for presence of MMCs and mesial intra-canal distance. CBCT software measured distance between the buccal of the MB canal to the lingual of the ML canal at the pulpal floor to determine average length between the canals. Seven distinct MMCs were seen both clinically (incidence of 13.725%) and on the CBCTs. Twenty-seven teeth (52.94%) had ambiguous broad isthmi between the MB and the ML orifi. MMCs were present at the furcation level, but merged with MB or ML canal towards the apex in 6/7 teeth (85.71%). Mean distance between mesial canals in teeth with MMCs was 3.643 mm, and was 3.818 mm for teeth without MMCs. According to independent sample t-testing, p-value was 0.496. In conclusion, incidence of MMCs in mandibular molars appears consistent with the literature. However, there does not appear to be a statistically significant difference in mesial intra-canal distance in teeth with and without MMCs. Visualization of MMCs on CBCTs may be subjective. There does not appear to be a correlation between the presence of MMCs and increased or decreased mesial intra-canal distance.

Eric Weinberg

Post-graduate Resident

Dr. Eric Weinberg is a 2014 graduate of the Boston University Henry M. Goldman School of Dental Medicine. Dr. Weinberg then completed a general practice residency program at Newark Beth Israel Medical Center in Newark, NJ in 2015 and worked as a general dentist in New Jersey prior to entering the post-graduate Endodontics program at Rutgers School of Dental Medicine in 2016.

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Alejandro Pereda

Post-graduate Resident

Dr. Alejandro Pereda is from Havana, Cuba, and grew up in Miami, Florida. Dr. Pereda graduated from Rutgers School of Dental Medicine in 2016, and is currently a second year post-graduate Endodontics resident as Rutgers School of Dental Medicine.

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Sonam Khurana

Preceptor

Dr. Sonam Khurana earned her BDS and MDS degrees from Goa Dental College and Hospital in Goa, India. Dr. Khurana is currently a preceptor in the department of Oral and Maxillofacial Radiology at the Rutgers School of Dental Medicine.

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Craig Hirschberg

Interim chair and post doctoral program director
Rutgers School of Dental Medicine

Dr Hirschberg, DDS and Diplomate of the ABE, is the Interim Chair and post doctoral program director at the Rutgers School of Dental Medicine. He graduated from NYU in 1980 and has been in practice for 36 years.

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Carla Y. Falcon

Clinical Assistant Professor
Rutgers School of Dental Medicine - Department of Endodontics

Clinical assistant professor at Rutgers School of Dental Medicine. Our study aims to come up with an explanation or provide factors for undergraduate pre-doctoral endodontic case shortages. This information may help program directors modify their programs to improve student experience.

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PR41 - Incidence of Mid-Mesial Canals Based on Distance Between Mesial Canal Orifi in Mandibular Molars: A Clinical and CBCT Analysis



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