IJAM: Volume 38, No. 1 (2025)

DOI: 10.12732/ijam.v38i1.2

MODELING DATA FOR ATYPICAL

CERVICOFACIAL PAIN USING

TWO-STAGE LOGISTIC REGRESSION

Krassimira Prodanova 1 , Vassil Sveshtarov 2 ,

Savina Nencheva-Sveshtarova 2

1 Technical University of Sofia

8 Kl. Ohridski Blvd

Sofia - 1000 , BULGARIA

2 Faculty of Dental Medicine

Medical University of Sofia

1 Georgi Sofiiski Blvd.

Sofia - 1431, BULGARIA

Abstract. Osteoarthrosis of the temporomandibular joint is a slowly progressive degenerative disorder. Clinical symptoms usually manifest unilaterally,

and some joints with osteoarthrosis-related structural alterations do not show any symptoms at all. However, we have observed some rare cases

of atypical high-intensity pain (≥ 9 in VAS scores) in the contralateral non-osteoarthrosis joint, cervical, and masticatory muscles without any

discomfort in the osteoarthrosis (OA) joint, but with pronounced hypomobility and deviation of the mandible to the OA joint. Our purpose was

to determine if the presence of unilateral OA predisposes to the development of atypically severe pain in the contralateral joint and cervicofacial

muscles, as well as the time at which the pain is likely to manifest itself from the initial symptoms of osteoarthrosis. Material and methods: A

total of 90 patients with unilateral OA were divided into three groups according to the presence of cervicofacial pain and into two groups according

to mandibular deviations. A two-stage logistic regression was performed to obtain an adjusted estimate of the odds and to identify if

unilateral osteoarthrosis is a predictor of severe contralateral cervicofacial pain. The software package STATISTICA 13.0 was used for analyzing

the real data. Results and conclusions: Patients with unilateral OA and deviation to the OA side had a higher rate of atypical severe contralateral

cervicofacial pain, which can occur in the first 21 months after the initial symptoms of OA.

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How to cite this paper?
DOI: 10.12732/ijam.v38i1.2
Source: International Journal of Applied Mathematics
ISSN printed version: 1311-1728
ISSN on-line version: 1314-8060
Year: 2025
Volume: 38
Issue: 1

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