Study on two-dimensional tooth mobility

Nihon Hotetsu Shika Gakkai zasshi
K YuasaM Haga

Abstract

Tooth mobility was measured with the use of a two-dimensional displacement measuring system. This small-sized system can measure the displacement both in the direction of the tooth axis and the buccolingual direction simultaneously with no contact. As test teeth, lower right first premolars with no clinical mobility were examined. The load was applied from the lingual to the buccal direction, to the vertical direction as well as from the buccal to the lingual direction. The results obtained were as follows: 1. This system possesses sufficient accuracy and reproducibility for tooth mobility measurement (measurement range 500 microns, resolving power 1 microns). 2. Most of the load-displacement curves showed diphasic displacement. 3. As to the amount of displacement in the buccolingual direction, 3 of 8 cases showed greater values by the load in the buccal direction and the remaining 5 by the load in the lingual direction. 4. As to the displacement direction of loaded teeth, the lingual and buccal load displaced teeth to the lingual-coronal and buccal-radicular directions respectively. Teeth under the vertical load were displaced almost to the radicular and slightly to the buccal direction. 5. As to the direction of tooth displac...Continue Reading

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.

Related Papers

Kōkūbyō Gakkai zasshi. The Journal of the Stomatological Society, Japan
M Saito
Kōkūbyō Gakkai zasshi. The Journal of the Stomatological Society, Japan
Ayako Tokuda
Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology
Da-Ming WuRui-Zhen Liang
© 2022 Meta ULC. All rights reserved