Importance of Digastric Muscle Sensitivity in Bruxism

Abstract

Objective. It was aimed to assess the differences in the sensitivities of masticatory and digastric muscles during examination because of continuous and excessive forces in case of bruxism. Material and Method. From the masticatory muscles of 162 individuals with bruxism and 162 control individuals, masseter, temporalis, medial / lateral pterygoideus muscles and digastric muscles were examined. Perceived sense of discomfort-pain during muscle examinations was scored according to a numerical rating scale and recorded as right and left. Results. In individuals with bruxism, the pain scores of the patients for each examined muscle were higher than the control group (p<0.05). In the ROC analysis performed in bruxism, cut-off values for digastric muscle, lateral pterygoideus muscle and other muscles were 2.5, 1.5 and 0.5, respectively. The sensitivity and specificity of the digastric muscles were found to be higher than other muscles (sensitivity: right=72.8%, left=72.8%, specificity: right=18.5%, left=17.9%). Conclusion. Bruxism affects digastric muscles more than masticatory muscles. Digastric muscles and other masticatory muscles should be evaluated in addition to masseter muscle pain, hypertrophy and fatigue in the clinical diagnosis of bruxism.

Keywords

• Bruxism
• digastric muscle
• masticatory muscles
• muscle examination
• pain

Bruksizmde Digastrik Kas Hassasiyetinin Önemi

Abstract

Amaç. Bruksizmde meydana gelen devamlı ve aşırı kuvvetler sonucu muayene sırasında çiğneme kasları ve digastrik kasın duyarlılıklarındaki farklılıkları araştırmak amaçlandı. Materyal- Metod. 162 bruksist ve 162 kontrol grubu bireyin çiğneme kaslarından masseter, temporal, medial / lateral pterygoid kaslar ve digastrik kas muayene edildi. Kas muayeneleri sırasında hissedilen rahatsızlık-ağrı hissi sayısal değerlendirme ölçeğine göre skorlanarak sağ ve sol olarak kaydedildi. Bulgular. Bruksist bireylerde incelenen her kasa ait hastaların belirttiği ağrı skorları kontrol grubuna göre daha yüksek bulundu (p<0,05). Yapılan ROC analizinde bruksistlerde kestirim değerleri digastrik kas için 2,5, lateral pterygoid kas için 1,5 ve diğer kaslar içinse 0,5 olarak hesaplandı. Digastrik kasın sensitivitesi ve spesifitesi diğer kaslara göre daha yüksek bulundu. (sensitivite: sağ=%72,8, sol=%72,8, spesifite: sağ=%18,5, sol=%17,9). Sonuç. Bruksizmden digastrik kas çiğneme kaslarına göre daha fazla etkilenmektedir. Bruksizm klinik tanısında masseter kas ağrısı, hipertrofisi ve yorgunluğuna ilaveten diğer çiğneme kasları ve digastrik kas da değerlendirimelidir.

Keywords

• Bruksizm
• digastrik kas
• çiğneme kasları
• kas muayenesi
• ağrı

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