1/14. Facial canal decompression leads to recovery of combined facial nerve paresis and trigeminal sensory neuropathy: case report.BACKGROUND: Trigeminal sensory neuropathy is often associated with facial idiopathic nerve paralysis (Bell's palsy). Although a cranial nerve viral polyneuropathy has been proposed as the usual cause, in many instances the etiology remains unclear. This case report of recovery of both trigeminal and facial neuropathy after surgical decompression of the facial nerve suggests an anatomic link. methods: A case of a 39-year-old woman presenting with recurrent unilateral facial paralysis is summarized. Her fifth episode, which did not spontaneously recover, was associated with retroorbital and maxillary pain as well as sensory loss in the trigeminal distribution. RESULTS: A middle cranial fossa approach for decompression of the lateral internal auditory canal, labyrinthine segment of the facial nerve and the geniculate ganglion was performed. The patient's pain and numbness resolved immediately postoperatively, and the facial paralysis improved markedly. CONCLUSION: This result implicates a trigeminal-facial reflex as hypothesized by others. It suggests that decompression of the facial nerve can lead to improvement in motor and sensory function as well as relief of pain in some patients with combined trigeminal and facial nerve dysfunction.- - - - - - - - - - ranking = 1keywords = canal (Clic here for more details about this article) |
2/14. Apical transportation revisited or 'where did the K-file go'?CASE REPORT: This case report describes the outcome of a number of retreatments on a failed root filling in a maxillary first molar. The patient wanted all amalgams replaced by tooth-coloured Cerec restorations, including one in a symptomless maxillary molar. This tooth had a pulpotomy or a poorly done root-canal treatment 10 years earlier. The molar was root-canal retreated before placing the Cerec restoration and the palatal canal was filled 5 mm short of the radiographic apex. About 1 year later the patient presented with pain. Suspecting that a second mesiobuccal canal (MB-2) had not been located, a second non-surgical retreatment was instituted. MB-2 was not found and the palatal canal was retreated a third time, setting the working length 2 mm short of the radiographic apex. Because pain persisted palatally an apicectomy was performed and the tooth became symptomless. The resected palatal root apex was subsequently serially cross-sectioned, photographed and the canals analysed. Obvious apical transportation occurred during the cleaning and shaping procedures. Analyses of the canals showed that despite the retreatments, 11% of the canal cross-sectional area remained uncleaned although 7% of the root area was 'shaped'. Radiographically, the obturated palatal canal appeared reasonably well centred. However, this was disproved by the cross-sections, indicating that in this case, the clinician did not know where the K-Files had 'gone'. Apically, the obturated canal was certainly not within the natural canal. The pain located palatally was probably due to inadequate cleaning and shaping of the apical part of the root canal and its accessory canals.- - - - - - - - - - ranking = 2.6keywords = canal (Clic here for more details about this article) |
3/14. Orbital pain and headache secondary to overfilling of a root canal.A 35-yr-old woman was referred to the Istanbul University, faculty of dentistry, Oral Surgery Department with complaints of orbital pain and headache. Panoramic radiographs showed overfilling of a maxillary premolar, which caused a perforation in the maxillary sinus floor. The etiology, clinical manifestations, and treatment of this complication are discussed with emphasis on early surgical intervention to decrease the risk of a superimposed aspergillosis infection.- - - - - - - - - - ranking = 0.8keywords = canal (Clic here for more details about this article) |
4/14. Report of case: reviewing cephalic tetanus.In this case, either caries or a root canal procedure provided the point of entry for cephalic tetanus. Facial/head pain may signal the first symptom.- - - - - - - - - - ranking = 0.2keywords = canal (Clic here for more details about this article) |
5/14. Chronic inflammation and pain inside the mandibular jaw and a 10-year forgotten amalgam filling in an alveolar cavity of an extracted molar tooth.A 55-year-old woman, suffered from severe pain in her mandibular jaw for several years. A metallic artifact of about 2(3) mm was detected by a panorama radiography in an edentulous region with a surrounding inflammation in close contact to the canal of the mandibular nerve. Inflammated tissue with the central metallic inclusion was removed from the bone under local anesthesia and operation. Postoperatively, pain and missensitivity disappeared within 1 week. Although the patient had no macroscopically visible so-called amalgam tattoo, the metallic cube was identified as amalgam by the detection of mercury, silver, tin, copper, and zinc using energy dispersive X-ray analysis (EDX) in a scanning electron microscope (SEM). Nevertheless, brown to black pigments in the connective tissue matrix and inside histiocytes, fibroblasts, and multinucleated foreign giant cells of the surrounding inflammatory tissue were observed by light and electron microscopy. However, the elemental analysis by EDX in SEM or by electron energy loss spectroscopy in transmission electron microscope detected only silver, tin, and sulfur but no mercury in these precipitates and in the residual bodies of phagocytes. The presented case demonstrates a seldom complication of amalgam deposition in the tissue. The authors assume that the chronic pain results from a forgotten amalgam filling inside an alveole after extraction of a molar tooth, causing a chronic inflammation by resolving mercury and other toxic elements out of the metallic artifact.- - - - - - - - - - ranking = 0.2keywords = canal (Clic here for more details about this article) |
6/14. Effects of sodium hypochlorite on soft tissues after its inadvertent injection beyond the root apex.The effects of an inadvertent injection of sodium hypochlorite into the cheek during irrigation of the right maxillary central incisor root canal are reported. The patient suffered from severe pain, edema, and necrosis of subcutaneous tissues and mucosa. Surgical intervention was necessary to contain the destructive process which extended from the upper lip to the right eye. The histopathological examination demonstrated the high cytotoxicity of sodium hypochlorite on vital tissue.- - - - - - - - - - ranking = 0.2keywords = canal (Clic here for more details about this article) |
7/14. Disabling complications following inadvertent overextension of a root canal filling material.A case of pain and paresthesia of the mental nerve following inadvertent introduction of root canal filling material into the inferior alveolar nerve canal is described. The causes and treatments of this disabling complication are discussed.- - - - - - - - - - ranking = 1.2keywords = canal (Clic here for more details about this article) |
8/14. Facial fuzz and funny findings. Facial hair causing otalgia and oropharyngeal pain.Three patients with referred otalgia and/or oropharyngeal pain due to ectopic facial hair found in either the external auditory canal or oropharynx were treated at the Cleveland Clinic Foundation, Department of otolaryngology and Communicative Disorders. In each of these patients, annoying symptoms were relieved by simple removal of the misplaced facial hair. Sensory nerve innervation of the external ear and oropharynx and their interrelationship in referred pain are described in detail following the case reports.- - - - - - - - - - ranking = 0.2keywords = canal (Clic here for more details about this article) |
9/14. sodium hypochlorite injection into periapical tissues.The following case report demonstrates the tissue changes that may occur when sodium hypochlorite, an irrigant used for debridement of the root canal system, is inadvertently injected into periapical tissues.- - - - - - - - - - ranking = 0.2keywords = canal (Clic here for more details about this article) |
10/14. calcium hydroxide paste in the maxillary sinus: a case report.A case is reported in which a perforation of the sinus floor of the maxillary sinus occurred with extrusion of a calcium hydroxide paste during routine root canal treatment of a maxillary premolar. All clinical manifestations are described as well as the results of a follow-up evaluation.- - - - - - - - - - ranking = 0.2keywords = canal (Clic here for more details about this article) |
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