Prevalence and Characteristics of the Maxillary C-shaped Molar

Journal of Endodontics
Jorge N R MartinsJoão Caramês

Abstract

The anatomy of the maxillary C-shaped molar has been the subject of several case reports although no true prevalence research has ever been conducted. The aim of this observational study was to evaluate and characterize the incidence of these morphologies using cone-beam computed tomographic (CBCT) technology. Patients having presurgical CBCT examination were selected. CBCT analysis was performed at 5 different axial levels, and the teeth were classified as maxillary molar C shapes according to the inclusion criteria for the present investigation. The prevalence of C-shaped anatomy was calculated. The z test for proportions in independent groups was used to analyze the differences between proportions. Intrarater reliability was also tested. A total of 2227 teeth (928 upper first molars and 1299 upper second molars) from 895 patients were included in this research. Five different types of C-shaped molars were found, which included fusion between mesiobuccal and palatal roots (type A), mesiobuccal and distobuccal roots (type B), distobuccal and palatal roots (type C), 2 possible palatal roots (type D), and mesiobuccal and palatal roots connecting with an independent distobuccal root canal at apical or between distobuccal and pala...Continue Reading

References

Aug 1, 1991·Journal of Endodontics·D C MeltonM W Fuller
Dec 1, 1990·Journal of Endodontics·E DanknerA Stabholz
Aug 1, 1984·Journal of Endodontics·C W Newton, S McDonald
May 22, 2002·International Endodontic Journal·R J G De Moor
Jan 18, 2006·Journal of Endodontics·Guang-Chun JinByoung-Duck Roh
Feb 4, 2006·International Endodontic Journal·Z YilmazS Calt
Aug 29, 2006·Journal of Endodontics·Blaine M CleghornCecilia C S Dong
Mar 30, 2011·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Jojo KottoorAnna Roy
Nov 19, 2013·Journal of Endodontics·Jorge N R MartinsJared Frisbie-Teel

❮ Previous
Next ❯

Citations

Feb 15, 2017·International Endodontic Journal·R Ordinola-ZapataM A Versiani
Jun 1, 2019·Restorative Dentistry & Endodontics·Maytté Marcano-CalderaJose Hernán Parra-Sánchez
Aug 18, 2020·Oral Radiology·Banu AricioğluTaha Emre Köse
Jun 19, 2021·Journal of Dental Sciences·Chih-Hsin LiuHsin-Hui Wang

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.