A new adjunctive tool to aid in the diagnosis of myogenous temporomandibular disorder pain originating from the masseter and temporalis muscles: Twin-block technique

Abstract

Myogenous temporomandibular disorder (TMD) is the most common type of nonodontogenic pain. The diagnosis is often elusive since diagnosing such conditions often requires a more comprehensive patient assessment. At present, there is no simple one-step diagnostic test to help render a definitive diagnosis of myogenous TMD pain. The twin-block injection can serve as a diagnostic aid to facilitate diagnosis of such myogenous TMD. The twin-block injection blocks the innervation to both the temporalis and masseter muscles, the two most common sources of referred pain to the teeth. This article reviews the twin-block technique along with a case report illustrating its potential role in the diagnosis and management of myogenous TMD pain of masseteric and temporalis origin.

Presentation of cysticercosis of the lateral pterygoid muscle as temporomandibular disorder: A diagnostic and therapeutic challenge

“…Often, the source of pain and the site of pain may differ. [2] Diagnosis of the source of orofacial pain complaints lays the foundation for successful treatment. In certain instances, systemic conditions such as cysticercosis may obscure patient's current complaints or lead to the development of new symptoms in preexisting orofacial pain/TMD patients.…”

Assistência ao paciente com disfunção temporomandibular na atenção primária à saúde brasileira: lacunas, desafios e possibilidades

“…Na investigação diagnóstica, deve-se realizar uma avaliação que inclua anamnese e exame físico detalhado (Quek et al, 2018, Clark et al, 2021, que precisa contar com a palpação dos músculos orofaciais, análise (estática e dinâmica) da mandíbula, mensuração da amplitude de abertura da boca e ausculta das ATMs. Também se faz necessário, uma adequada coleta da história pregressa e atual dos distúrbios sistêmicos, parafuncionais e oclusais, além dos fatores psicossociais (Basto et al, 2017), principalmente o estresse, ansiedade e depressão (Lemos et al, 2015;Maia et al, 2021).…”