Diagnosis and management of traumatically induced hemicrania continua and neuropathic pain secondary to facial gun shot wound.

Near fatal gunshot wound to the face results in lifesaving surgery and restorative procedures. Chronic pain followed. This is the probable first case report of posttraumatic hemicrania continua and its successful management.

Nummular Headache - a Case Report of a Rare Entity.

PURPOSE OF REVIEW: The purpose of this manuscript is to shed light on systematic work-up of a diagnostic challenge such as nummular headache (NH), and to summarize the relevant literature on NH. RECENT FINDINGS: The specific nature of the shape of the pain site is usually characteristic of NH. Multiple modalities of investigation including succinct imaging are necessary to successfully rule out other similar conditions. A 26-year-old female patient of Asian-Indian origin presented to the clinic with the chief complaint of chronic persistent left parietal headache for more than 10 years, which has been worsening over the past few days with no specific identifiable trigger. The diagnosis of nummular headache is challenging and confusing due to the rare occurrence and inadequate references in the literature. Appropriate imaging was done, which revealed no pathology that could explain the headache presentation. These findings are consistent with our diagnosis of nummular headache, and helped in the successful management of the case.

Chronic orofacial pain, cognitive-emotional-motivational considerations: A narrative review.

The following material was presented to an esteemed group of colleagues, Chinese physicians and stomotologists, friends and fellow panellists from around the globe at the Core China Conference, Nanjing China. Modern medicine accepts that a dichotomy exists between the mind, psyche and emotions and the rest of the body as if they function independently, having little downward up upward influence, one on the other. However, history teaches a different lesson. The influence of the emotional state of the patient plays a significant role effecting hormonal, neuroimmunological and peripheral modulatory factors influencing the pain experience. This brief discussion reviews the roots of modern Western Medicine in Traditional Chinese Medicine, and how we have come back to the realisation of the mind-body concept in treating the patient as a single entity and not as a collection of systems.

In vitro correlation of the level of inferior alveolar canal with CBCT imaging.

PURPOSE: The aim was to correlate the level of the inferior alveolar canal on cadaver specimens and as evaluated with three-dimensional radiographic cone-beam computed tomography (CBCT) imaging. METHODS: Twenty-one skulls with intact mandibles (42 inferior alveolar canals) were imaged with an I-CAT Cone-Beam 3D Imaging System and multi-planar reformatted images obtained were scored to assess the level of the canal (Level I, Level II, and Level III). The mandibles were later dissected and level of the canal was directly visualized, scored, and further correlated with results from CBCT imaging. RESULTS: There was no difference in the level of the inferior alveolar canal between the dissected cadaver specimen and CBCT images. Also, there was no statistically significant difference in the level of the canal among the gender assigned to the specimens and corresponding CBCT images. There were no statistical differences in the level of the canal (cadaver specimen vs. CBCT) between the left and right sides of the specimens, as studied individually. CONCLUSION: Our study indicates that there is close correlation of the level of the inferior alveolar canal between cadaver specimens and CBCT images. Well-designed studies would be required to further validate the findings in this study.

Combined palliative and anti-inflammatory medications as treatment of temporomandibular joint disc displacement without reduction: a systematic review.

The aim of this study was to evaluate the efficacy of self-care combined with anti-inflammatory medications in the treatment of temporomandibular joint (TMJ) pain associated with disc displacement without reduction (DDWOR). A systematic review of randomized clinical trials was done by the authors. The databases searched were Medline (1966 to July 2012); EMBASE (1980 to July 2012); and LILACS (from 1982 to July 2012). The review authors independently assessed trials for eligibility and methodological quality and also extracted all data. The data was double-checked for accuracy. There was no language restriction in the searches of EMBASE, PubMed, and LILACS databases, or in the manual search. The risk of bias and the heterogeneity of the studies taken into consideration were assessed. Two studies, randomizing 175 patients, were included in this review. The first study (n = 106) compared the following interventions: medical treatment, rehabilitation, arthroscopic surgery with postoperative rehabilitation, or arthroplastic surgery with post-operative rehabilitation. The second study (n = 69) compared the use of nonsteroidal anti-inflammatory medications and self-care instructions, nonsteroidal anti-inflammatory medications, occlusal splint, and mobilization therapy. The third group received no treatment; patients were only informed of their prognosis. There is no sufficient evidence regarding efficacy and safety of the palliative treatments associated with anti-inflammatory versus other treatments, or absence of treatment on pain reduction in patients with TMJ DDWOR.

Persistent Idiopathic Dentoalveolar Pain: Is It a Central Pain Disorder?

The International Classification of Orofacial Pain (ICOP) describes idiopathic pain as "unilateral or bilateral intraoral or facial pain in the distribution(s) of one or more branches of the trigeminal nerve(s) for which the etiology is unknown. Pain is usually persistent, of moderate intensity, poorly localized and described as dull, pressing or of burning character." Several diagnoses are included in the ICOP Idiopathic pain section, burning mouth syndrome and persistent idiopathic facial and dentoalveolar pain. This article, with a representative case presentation, briefly discusses common features that may lead to a common central cause for a variety of peripheral complaints.

Secondary trigeminal neuralgia diagnosed in orofacial pain setting as epidermoid tumor.

This case report describes the rare occurrence of an epidermoid tumor compressing the ipsilateral trigeminal nerve resulting in secondary trigeminal neuralgia. MRI is the imaging modality of choice for the diagnosis of secondary trigeminal neuralgia. The epidermoid tumor was discovered by an orofacial pain specialist after reassessing the MRI study, previously reported as normal. Clinicians encounter a diagnostic dilemma when the clinical picture is not consistent with the MRI reports, clinical presentation, and expected results of treatment. The reassessment of the MRI and discovery of the epidermoid tumor resulted in a prompt referral to a neurosurgeon with a successful treatment outcome.

The relation of temporomandibular disorders and dental occlusion: a narrative review.

OBJECTIVE: The term temporomandibular disorders (TMDs) encompasses a variety of disorders of the temporomandibular joint (TMJD) and the associated musculature (MMD). Occlusion and its role in the genesis of TMDs is one of the most controversial topics in this arena. The objective of the narrative review was to summarize the implications of TMDs and its relationship to dental occlusion in two scenarios: 1) TMD as an etiologic factor in dental occlusal changes; 2) The role of dental occlusion as a causative factor in the genesis of TMDs. DATA SOURCES: Indexed databases were searched from January 1951 to August 2021 using the terms TMJ, TMD, temporomandibular disorders, temporomandibular joint, and dental occlusion. CONCLUSION: There is lack of good primary research evaluating true association and showing the cause-and-effect relationship between dental occlusion and TMD. Systematic reviews suggest that the role of occlusion as a primary factor in the genesis of TMDs is low to very low. However, a variety of TMDs can lead to secondary changes in dental occlusion. Distinction between the two is paramount for successful management.

Hemicrania continua secondary to neurogenic paravertebral tumor- a case report.

OBJECTIVES: Hemicrania continua (HC) is one of the trigeminal autonomic cephalalgias (TAC), where sympathetic dysfunction and autonomic dysfunction resulting in parasympathetic over activation with some evidence of sympathetic inhibition have been suggested as probable causes. However, cases of hemicrania continua secondary to sympathetic dysfunction due to neurogenic paravertebral tumor impinging on the sympathetic chain has not been previously reported. In this case, the probability of the sympathetic dysfunction was more likely based on the clinical features and management. CASE PRESENTATION: A 23-year-old female presented with a chief complaint of right unilateral pain in the retro-bulbar, head and facial region for the past three years. An initial MRI of the brain was negative, whereas an MRI of the spine was advised to rule out a cervicogenic origin of the pain. The MRI revealed a well-defined mass lesion within right paravertebral region at T3 indicative of a neurogenic tumor. The patient was diagnosed with probable hemicrania continua secondary to neurogenic tumor impinging on adjacent sympathetic chain. A trial of indomethacin 75 mg/day was advised, which provided complete relief of the headache. The patient was referred to a neurologist for management of the neurogenic tumor. CONCLUSIONS: Headache disorders may be secondary to pathologies and comprehensive evaluation and accurate diagnosis are essential. Knowledge of neuroanatomy is paramount to understand and explain underlying pathophysiological mechanisms. Multidisciplinary management is essential in complex orofacial cases.

Sensory Changes Related to Dental Implant Placement: A Scoping Review.

AIMS: To perform a scoping review of the literature to elucidate the occurrence of nerve damage related to dental implant placement and the factors causing the sensory changes. METHODS: An extensive electronic search was conducted using the Cochrane Library, Medline via Ovid, PubMed, Wiley Online, Science Direct, CINAHL, and the Google Scholar databases from the year 1950 to 2020. RESULTS: The search resulted in 1,067 articles, out of which 76 were selected for this review. The articles were categorized as literature review articles, retrospective studies, prospective studies, and case series/case reports. Altogether, 2,526 subjects were assessed retrospectively, with 5.27% transient and 1.39% persistent sensory changes, and a cohort of 2,750 subjects were followed prospectively, with 6.22% transient and 1.31% persistent sensory changes. A total of 336 subjects were enrolled in various case reports and case series, with 5.95% transient sensory changes and 84.52% persistent neurosensory changes. The articles included were not of high quality and have variations in their study designs and reporting procedures, with limited sensory change data to include in this study. CONCLUSION: After surgical placement of dental implants in 5,612 patients, the incidence of transient sensory changes was 5.63%, and the incidence of persistent sensory changes was 6.33%. Factors affecting the incidence were: mandibular location of the implant, with the inferior alveolar nerve as the most commonly affected nerve. The common symptoms reported were paresthesia and dysesthesia. Age and gender were among other factors, for which data were not available in all the articles.

Position paper: appropriate use of pharmacotherapeutic agents by the orofacial pain dentist.

Orofacial Pain Dentistry is concerned with the prevention, evaluation, diagnosis, treatment, and management of persistent and recurrent orofacial pain disorders. The American Dental Association, through the Commission on Dental Accreditation (CODA), now recognizes Orofacial Pain as an area of advanced education in Dentistry. It is mandated by CODA that postgraduate orofacial pain programs be designed to provide advanced knowledge and skills beyond those of the standard curriculum leading to the DDS or DMD degrees. Postgraduate programs in orofacial pain must include specific curricular content to comply with CODA standards. The intent of CODA standards is to assure that training programs develop specific educational goals and objectives that describe the student/resident's expected knowledge and skills upon successful completion of the program. A standardized core curriculum, required for accreditation of dental orofacial pain training programs, has now been adopted.Among the various topics mandated in the curriculum are pharmacology and, specifically, pharmacotherapeutics. The American Academy of Orofacial Pain (AAOP) recommends, and the American Board of Orofacial Pain (ABOP) requires, that the minimally competent orofacial pain dentist* be knowledgeable in the management of orofacial pain conditions using medications when indicated. Basic knowledge of the appropriate use of pharmacotherapeutics is essential for the orofacial pain dentist and, therefore, constitutes part of the examination specifications of the ABOP. The minimally competent orofacial pain clinician must demonstrate knowledge, diagnostic skills, and treatment expertise in many areas, such as musculoskeletal, neurovascular, and neuropathic pain syndromes; sleep disorders related to orofacial pain; orofacial dystonias; and intraoral, intracranial, extracranial, and systemic disorders that cause orofacial pain or dysfunction. The orofacial pain dentist has the responsibility to diagnose and treat patients in pain that is often chronic, multifactorial, and complex. Failure to understand pain mechanisms can lead to inaccurate diagnoses and ineffective, delayed, or harmful treatment. It is the responsibility of the orofacial pain dentist to accurately diagnose the cause(s) of the pain and decide if treatment should be dentally, medically, or psychologically oriented, or if optimal management requires a combination of all three treatment approaches. Management may consist of a number of interdisciplinary modalities including, eg, physical medicine, behavioral medicine, and pharmacology or, in rare instances, surgical interventions. Among the essential armamentarium is the knowledge and proper use of pharmacologic agents.

Cerebellopontine angle (CPA) tumor mimicking dental pain following facial trauma.

Facial injuries are common during workplace accidents. These incidents are also associated with an increase in both mortality and morbidity rates. The following case describes a 40-year-old white Hispanic patient with paroxysmal facial pain on the right side, one year in duration. The patient reported facial trauma as a result of a direct fall thought to be related to his pain complaints five months prior to arriving at the New Jersey Dental School emergency unit. The facial pain was progressively worsening ever since the accident. Upon arrival at the emergency unit, a comprehensive intraoral and extraoral examination was performed. Application of a local anesthetic at the site of the pain produced equivocal results. After obtaining a complete history and clinical examination, an MRI was ordered to rule out the possibility of a space-occupying lesion in the brain considered as a possible source of the pain. This case focuses on different aspects relative to dental care: the importance of a complete history and patient evaluation in order to make an accurate diagnosis; the complexity of orofacial pain; and the training required for dental health care providers who treat unusual oral and facial pain complaints.

The Efficacy of Pharmacologic Treatment of Temporomandibular Disorders.

This is not a pharmacopeia offering directions for choosing the proper pain medication for treating temporomandibular disorders. Rather, the appropriate decision depends on proper diagnosis, an understanding of the pain mechanisms involved, and the different targets for analgesic action. This article discusses these issues and evaluates the various drugs involved. It also describes potential reasons for therapeutic failure.

Pain-Free Outcomes and Durability of Surgical Intervention for Trigeminal Neuralgia: A Comparison of Gamma Knife and Microvascular Decompression.

OBJECTIVE: Treatment options for trigeminal neuralgia include microvascular decompression (MVD) and Gamma Knife surgery (GKS). There is no consensus which option is more effective at providing immediate and long-lasting pain relief. This study evaluated the differences between these 2 options in terms of rates of complete pain relief and pain-free recurrence. METHODS: A systematic review was conducted of published studies of MVD and GKS for treatment of trigeminal neuralgia from 2004 to 2014. Studies were selected using a MEDLINE/PubMed search and from subsequent inspection of references from articles found in the initial search. Common outcome measures reported in the studies were used for meta-analysis to make conclusions based on current available data. RESULTS: The MVD group included 18 articles with 2650 patients, and the GKS group included 25 articles with 2846 patients. MVD was found to have a significantly higher rate of initial pain-free outcomes (Barrow Neurological Institute grade I) compared with GKS (92.22% vs. 61.46%, P < 0.0001). MVD was also found to have a significantly higher rate of long-term pain-free outcomes at last follow-up compared with GKS (79.37% vs. 41.62%, P < 0.0001). MVD was found to have a similar rate of pain-free recurrence compared with GKS (14.93% vs. 19.38%, P = 0.2536). CONCLUSIONS: MVD may be a more effective intervention than GKS owing to higher rates of initial pain-free outcomes and long-term pain-free outcomes. There is a need for more consistent data reporting of outcomes for treatment of trigeminal neuralgia.