SCIENTIFIC ARTICLES

Proliferative potential in benign mixed salivary gland tumors and its value in primary and recurrent neoplasms
Anna Kazanceva, Valerie Groma, Liene Smane, Egils Kornevs, Uldis Teibe
35-41

Relationship between radiographic changes in the temporomandibular joint and bone mineral density: A population based study
Oksana Jagur, Mart Kull, Edvitar Leibur, Riina Kallikorm, Dagmar Loorits, Margus Lember, Ülle Voog – Oras
42-48

Prognostic factors and epidemiological characteristics of cutaneous and mucosal head and neck melanoma
Anna Berzina, Kristine Azarjana, Ingrida Cema, Dace Pjanova, Alexander Rivosh
49-54

Comparative analysis of CRT Buffer, GC Saliva Check Buffer tests and laboratory titration to evaluate saliva buffering capacity
Ilze Maldupa, Anda Brinkmane, Anna Mihailova
55-61

The relation between oral hygiene skills and the prevalence of dental caries among 4 - 6-yearoldchildren
Jaunė Razmienė, Giedrius Vanagas, Eglė Bendoraitienė, Aurelija Vyšniauskaitė
62-67

Evaluation of oral health status of retirement-age population in Latvia
Aldis Vidzis, Ingrida Cema, Ingrida Krasta, Anda Brinkmane, Imants Kalnins
68-72

Stomatologija 2011; 13 (2): 42-8 249 KB

Relationship between radiographic changes in the temporomandibular joint and bone mineral density: A population based study

Oksana Jagur, Mart Kull, Edvitar Leibur, Riina Kallikorm, Dagmar Loorits, Margus Lember, Ülle Voog – Oras

Summary

Objective. The aim of this population based study was to compare radiographic changes in the temporomandibular joint (TMJ) with the lumbar spine and femoral neck BMD. To find whether there is any relationship between TMJ radiographic changes, vitamin D (25(OH)D) and bone markers levels and the number of missing teeth.
Material and methods. The study included 95 randomly selected participants. Bilateral TMJ images were obtained using an orthopantomograph (OPTG) and were evaluated for presence of radiographic signs. BMD was measured by dual energy X-ray absorptiometry (DXA). BMD of the lumbar spine (LT score) and femur (FT score) was detected by DXA. The level of type I collagen telopeptide fragments (P1NP), of C-telopeptide crosslaps of type I collagen (CTX-1) and of 25(OH)D were also measured.
Results. Subjects with a lower LT score had significantly fewer occluding pairs of teeth (p=0.018) and were more frequent users of removable prostheses (p=0.008). Radiographic changes were negatively correlated with P1NP (p=0.041). CTX-1 correlated positively with P1NP (p<0.001) and negatively with 25(OH)D (p=0.042). Occluding pairs of teeth were positively correlated with the LT score (p=0.012) and FT score (p<0.001). Radiography showed changes in the TMJ of 57% of participants. Out of 95 participants, 60% demonstrated an abnormally low LT value.
Conclusions. This population based study indicates that TMJ radiographic changes and teeth loss seems to be related to the low level of BMD and 25(OH)D level.

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¹Department of Stomatology of the University of Tartu

²Department of Internal Medicine of the University of Tartu

³Department of Radiology of the University of Tartu, Estonia

Oksana Jagur¹ – DDS, PhD student

Mart Kull² – MD, PhD, researcher

Edvitar Leibur¹ – MD, PhD, Dr Med Sc, prof. emer , senior reseacher

Riina Kallikorm² – MD, PhD, assoc. prof.

Dagmar Loorits³ – MD

Margus Lember² – MD, PhD, Dr Med Sc, prof.

Ülle Voog-Oras¹ – DDS, Lic Med , Dr Med, Sc assoc. prof

Address correspondence to Dr. Oksana Jagur, Department of Stomatology, University of Tartu, 8 L. Puusepa St, 51014 Tartu, Estonia.
E-mail address: oksana.jagur@kliinikum.ee