Evidence map›Paper›PMID 29519234›Full record

ArticleBMC geriatrics2018

Relationship of aging, skeletal muscle mass, and tooth loss with masseter muscle thickness.

Kohei Yamaguchi, Haruka Tohara, Koji Hara, Ayako Nakane, Eriko Kajisa, Kanako Yoshimi, Shunsuke Minakuchi

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC geriatrics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
5.1field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

45 citing papers in PubMed, 82 citations in OpenAlex.

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  20. Factors Affecting Masticatory Performance of Older Adults Are Sex-Dependent: A Cross-Sectional Study.International journal of environmental research and public health · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Kohei YamaguchiDepartment of Gerodontology and Oral Rehabilitation, Tokyo Medical and Dental University, 1-5-45 yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
Haruka ToharaDepartment of Gerodontology and Oral Rehabilitation, Tokyo Medical and Dental University, 1-5-45 yushima, Bunkyo-ku, Tokyo, 113-8510, Japan. haruka-t@rd5.so-net.ne.jp.ORCID 0000-0001-5514-6419
Koji HaraDepartment of Gerodontology and Oral Rehabilitation, Tokyo Medical and Dental University, 1-5-45 yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
Ayako NakaneDepartment of Gerodontology and Oral Rehabilitation, Tokyo Medical and Dental University, 1-5-45 yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
Eriko KajisaDepartment of Gerodontology and Oral Rehabilitation, Tokyo Medical and Dental University, 1-5-45 yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
Kanako YoshimiDepartment of Gerodontology and Oral Rehabilitation, Tokyo Medical and Dental University, 1-5-45 yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
Shunsuke MinakuchiDepartment of Gerodontology and Oral Rehabilitation, Tokyo Medical and Dental University, 1-5-45 yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
Tokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have reported a relationship between masseter muscle thickness and tooth loss or limb muscle thickness. However, it is not yet known whether masseter muscle thickness is related to appendicular skeletal muscle mass, and grip strength. The purpose of this study was to determine which of the two variables-tooth loss or appendicular skeletal muscle mass index-is more strongly related to masseter muscle thickness, and to identify a suitable indicator of decreasing masseter muscle thickness in healthy elderly individuals.

methodsGrip strength, walking speed, body weight, skeletal muscle mass index, tooth loss, and masseter muscle thickness at rest and during contraction were determined in 97 community-dwelling elderly individuals aged ≥65 years (men: 44, women: 53). Masseter muscle thickness was chosen as the dependent variable, while age, skeletal muscle mass index, body weight, grip strength, and tooth loss were chosen as the independent variables. Multiple regression analysis was conducted using the stepwise regression method.

resultsIn men, grip strength was the only independent predictor of masseter muscle thickness at rest. Tooth loss and grip strength were independent predictor of masseter muscle thickness during contraction. In women, tooth loss was the independent predictor of masseter muscle thickness both at rest and during contraction, while grip strength and body weight were the independent predictor of masseter muscle thickness at rest only.

conclusionsWe confirmed that in healthy elderly individuals, tooth loss has a stronger relationship with masseter muscle thickness than aging and skeletal muscle mass index do. Masseter muscle thickness in both elderly men and women is also associated with grip strength, suggesting that grip strength can be used as an indicator of masseter muscle thickness in this population.

Indexed as

AgedAged, 80 and overAgingBody WeightFemaleHand StrengthHumansMaleMasseter MuscleMuscle, SkeletalMuscle StrengthTooth LossWalkingAgingElderlyMasseter muscleSkeletal muscleTooth loss

Identifiers

PMID29519234
PMCPMC5844127
OpenAlexW2802683635

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.