Tandläkarscreening av kvinnors osteoporosrisk: Underkäkens bentäthet och struktur.
Tandläkarscreening av kvinnors osteoporosrisk: Underkäkens bentäthet och struktur.
Project number : 283
Created by: Grethe Jonasson, 2005-08-08
Last revised by: Grethe Jonasson, 2015-06-23
Project created in: FoU i Västra Götalandsregionen

Rekrytering/datainsamling inte påbörjad
Projektet slutfört

1. Översiktlig projektbeskrivning

Engelsk titel

Estimation of skeletal bone mineral density by means of the trabecular pattern of the alveolar bone, its interdental thickness, and the bone mass of the mandible.

Populärvetenskaplig sammanfattning av projektet

I Sverige är 50% av alla kvinnor och 25% av alla män i riskzonen för att få osteoporos. Om riskgrupperna kan identifieras tidigt kan de kvinnor som har låg bentäthet själv göra en insats för att förbättra sitt skelett. På vanlig tandröntgen mäts underkäkens bentäthet med ett densitometer mellan två premolarer och benstrukturen utvärderas med ett visuellt index utvecklat av Lindh et al. 1996. Korrelationsanalyser används för att utröna om det finns samband mellan skelettets bentäthet och underkäkens bentäthet och struktur.

Vetenskaplig sammanfattning av projektet

Objective. We sought to evaluate the use of the alveolar trabecular pattern, the mandibular alveolar bone mass (MABM) measured by photodensitometry, and the interdental alveolar thickness for prediction of the skeletal bone mineral density (BMD).

Study design. MABM and the coarseness of trabeculation were assessed by using periapical radiographs in 80 dentate women. The interdental alveolar thickness was measured on casts, and BMD of the forearm with dual X-ray absorptiometry.

Results. Significant correlations were found between skeletal BMD and MABM (r = 0.46, P < .001) as well as the coarseness of the trabeculation (r = 0.62, P < .001). The interdental alveolar thickness improved the correlation between skeletal BMD and MABM (R2 = 0.44, P < .001). Age, but not interdental thickness, improved the correlation between the coarseness of trabeculation and skeletal BMD (R2 = 0.52, P < .001).

Conclusion. Evaluation of the coarseness of trabeculation of the alveolar bone as seen on intraoral radiographs is a helpful clinical indicator of skeletal BMD and better than densitometric measurements of the alveolar bone. Dense trabeculation is a strong indicator of high BMD, whereas sparse trabeculation may be used to predict low BMD.

Typ av projekt


MeSH-termer för att beskriva typ av studier

checked Tvärsnittsstudier (Cross-Sectional Studies)

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MeSH-termer för att beskriva ämnesområdet

information Added MeSH terms
Osteoporosis, Postmenopausal
Metabolic disorder associated with fractures of the femoral neck, vertebrae, and distal forearm. It occurs commonly in women within 15-20 years after menopause, and is caused by factors associated with menopause including estrogen deficiency.
Human adult females as cultural, psychological, sociological, political, and economic entities.
Radiography, Dental
Radiographic techniques used in dentistry.
The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.
A person having attained full growth or maturity. Adults are of 19 through 44 years of age.
Age Factors
Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.
A person 65 through 79 years of age. For a person older than 79 years, AGED, 80 AND OVER is available.
Alveolar Process
The thickest and spongiest part of the maxilla and mandible hollowed out into deep cavities for the teeth.
Analysis of Variance
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
Bone Diseases, Metabolic
Description missing
Description missing
Description missing
The prediction or projection of the nature of future problems or existing conditions based upon the extrapolation or interpretation of existing scientific data or by the application of scientific methodology.
Members of the species Homo sapiens.
Middle Aged
Description missing
Reduction of bone mass without alteration in the composition of bone, leading to fractures. Primary osteoporosis can be of two major types: postmenopausal osteoporosis (OSTEOPOROSIS, POSTMENOPAUSAL) and age-related or senile osteoporosis.
Statistics as Topic
The science and art of collecting, summarizing, and analyzing data that are subject to random variation. The term is also applied to the data themselves and to the summarization of the data.
Reproducibility of Results
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
Bone Density
The amount of mineral per square centimeter of BONE. This is the definition used in clinical practice. Actual bone density would be expressed in grams per milliliter. It is most frequently measured by X-RAY ABSORPTIOMETRY or TOMOGRAPHY, X RAY COMPUTED. Bone density is an important predictor for OSTEOPOROSIS.
Observer Variation
The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material).
Linear Models
Statistical models in which the value of a parameter for a given value of a factor is assumed to be equal to a + bx, where a and b are constants. The models predict a linear regression.
Radiography, Bitewing
Technique involving the passage of X-rays through oral structures to create a film record while a central tab or wing of dental X-ray film is being held between upper and lower teeth.
Statistics, Nonparametric
A class of statistical methods applicable to a large set of probability distributions used to test for correlation, location, independence, etc. In most nonparametric statistical tests, the original scores or observations are replaced by another variable containing less information. An important class of nonparametric tests employs the ordinal properties of the data. Another class of tests uses information about whether an observation is above or below some fixed value such as the median, and a third class is based on the frequency of the occurrence of runs in the data. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1284; Corsini, Concise Encyclopedia of Psychology, 1987, p764-5)
Oral Health
The optimal state of the mouth and normal functioning of the organs of the mouth without evidence of disease.
Public Health Dentistry
A dental specialty concerned with the prevention of disease and the maintenance of oral health through promoting organized dental health programs at a community, state, or federal level.
Dental Care
The total of dental diagnostic, preventive, and restorative services provided to meet the needs of a patient (from Illustrated Dictionary of Dentistry, 1982).

Projektets delaktighet i utbildning

checked Avhandling

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2. Projektorganisation och finansiering

Arbetsplatser involverade i projektet

Added workplaces

Regioner - Västra Götalandsregionen - Folktandvården Västra Götaland - Allmäntandvård - Område Söder workplace verified by Västra Götalandsregionen on 2018-02-27


Ronny Gunnarsson
Professor in General Practice at at University of Gothenburg, Sweden, Avdelningen för samhällsmedicin och folkhälsa, Närhälsan FoU-centrum Södra Älvsborg, Avdelningen för samhällsmedicin och folkhälsa

3. Processen och projektets redovisning

Publikationer från detta projekt

  1. Jonasson G, Bankvall G, Kiliaridis S.
    Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics 2001:92(3):346-52.

Detaljerad projektbeskrivning


I Sverige är 50% av alla kvinnor och 25% av alla män i riskzonen för att få osteoporos. om riskgrupperna kan identifieras tidigt kan de kvinnor som har låg bentäthet själv göra en insats för att förbättra sitt skelett.


Att på ett tidigt stadium kunna identifiera kvinnor med risk för osteoporos

Frågeställning / Hypoteser

Kan tandläkare med ett vanligt tandröntgen avgöra om kvinnor har låg benmassa?

Metod: Urval

80 kvinnor, patienter på en folktandvårdsklinik, konsekutivt tillfrågad om att delta i projektet.

Metod: Intervention


Metod: Datainsamling

På vanlig tandröntgen mäts underkäkens bentäthet med ett densitometer mellan två premolarer och benstrukturen utvärderas med ett visuellt index utvecklat av Lindh et al. 1996. Frågeformular angående livsstilsfaktorer, medicin och sjukdomar. Gipsmodeller, där man mäter tjockleken av alveolarutskottet, den tandbärande delen av underkäken.

Metod: Databearbetning

Linjära och multipla korrelationsanalyser mellan kroppens bentäthet och de orala variabler.


Studien visar att det finns ett signifikant samband mellan BMD och alveolarprocessens benstruktur, som tillsammans med ålder kan prediktera 52% av variationen i BMD. Sambandet mellan BMD och benmassa förbättras om man tar hänsyn till alveolarprocessens tjocklek och 44% av variationen i BMD kan förklaras. Tät trabekelnät i käkbenet är ett säkert tecken på normal BMD i undearmen medan gles trabekelstruktur är tecken på osteopeni.

Tandläkarscreening av kvinnors osteoporosrisk: Underkäkens bentäthet och struktur., from FoU-centrum för primärvård och folktandvård Södra Älvsborg