Radiographic investigation of location and angulation of curvatures in human maxillary incisors

Journal of Endodontics
B WillershausenB Briseño

Abstract

The aim of this radiographic study was to evaluate the degree and location of root canal curvatures of human maxillary incisors. A total of 286 extracted human maxillary incisors (145 central and 141 lateral incisors) were included in this investigation. Exclusion criteria were teeth with extensive carious lesions, restorations, and root canal treatment. For this in vitro study, the teeth were fixed in a special device and digitally x-rayed with the parallel technique. The distances from the cementoenamel junction (CEJ) to the first curvature and the according angle were recorded. The results were analyzed descriptively, and p values were calculated with the Wilcoxon Mann-Whitney test. The mean distance between the CEJ and the first curvature of the central maxillary incisors was 10.4 mm (standard deviation [SD] +/- 2.8) and that of the lateral incisors was 11.1 mm (SD +/- 3.0). Most of the central incisors (right: 94.2%, left: 98.7%) and all of the lateral incisors exhibited curvatures. Statistically significant differences between central and lateral maxillary incisors could be observed regarding the canal curvature locations (p = 0.016) and the angle values (p < 0.001), but there was no statistical difference between the rig...Continue Reading

References

Dec 1, 1991·Oral Surgery, Oral Medicine, and Oral Pathology·D R Morse
Jan 1, 1974·Community Dentistry and Oral Epidemiology·M E Curzon
Aug 1, 1971·Oral Surgery, Oral Medicine, and Oral Pathology·S W Schneider
Nov 1, 1984·Oral Surgery, Oral Medicine, and Oral Pathology·F J Vertucci
Apr 2, 2002·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Soraya RobinsonF M Kainberger
Nov 19, 2004·International Endodontic Journal·J M BedfordC C Youngson
May 19, 2005·Journal of Periodontology·Daniele SalettaGiovan Paolo Pini Prato
Aug 24, 2007·International Endodontic Journal·H A AhmedY E Ibrahim
Oct 30, 2007·Journal of Endodontics·Noboru ImuraFrancisco J Souza-Filho
Dec 18, 2007·International Endodontic Journal·L A Awawdeh, A A Al-Qudah
Jan 25, 2008·Journal of Endodontics·Brita WillershausenBenjamin Briseño Marroquin
Mar 11, 2008·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Euiseong KimIl-Kyu Kim

❮ Previous
Next ❯

Citations

Oct 6, 2009·Journal of Endodontics·Eudes GondimBekir Karabucak

❮ 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.