{"id":5087,"date":"2011-07-14T20:23:16","date_gmt":"2011-07-14T20:23:16","guid":{"rendered":"http:\/\/crashtext.org\/misc\/5087.htm\/"},"modified":"2021-01-16T13:01:31","modified_gmt":"2021-01-16T18:01:31","slug":"oral-medicine-and-dentistry","status":"publish","type":"post","link":"https:\/\/crashingpatient.com\/medical-surgical\/oral-medicine-and-dentistry.htm\/","title":{"rendered":"Oral Medicine and Dentistry"},"content":{"rendered":"

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Start tooth numbering at Upper R 3rd molar and end at Lower R 3rd Molar (1-32)<\/p>\n

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Primary (baby) teeth<\/p>\n

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Name of tooth <\/strong> Appearance in the mouth <\/strong> Central incisor 4-14 months Lateral incisor 8-18 months Canine tooth 14-24 months First molar 10-20 months Second molar 20-36 months<\/p>\n

Permanent (adult) teeth<\/p>\n

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Name of tooth <\/strong> Appearance in the mouth <\/strong>Central incisor 5-9 years Lateral incisors 6-10 years Canine tooth 8.5-14 years First premolar (bicuspid) 9-14 years Second premolar (bicuspid) 10-15 years First molar (6-year molar) 5-9 years Second molar (12-year molar) 10-15 years Third molar (wisdom tooth) 17-25 years<\/p>\n

(EM Practice, May 2003)<\/p>\n

<\/span>Terminology<\/span><\/h2>\n

Lingual is towards the tongue for the mandibular teeth<\/p>\n

Palatal is towards the palate for the maxillary teeth<\/p>\n

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Interproximal Surface is the surfaces of contact between two teeth<\/p>\n

Mesial is the anteror or midline facing surface<\/p>\n

Distal is the posterior or the surface facing away from midline<\/p>\n

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Occlusal is the biting\/chewing surface of premolars and molars<\/p>\n

Incisal is the biting surface of the incisors and canines<\/p>\n

Apical is towards the root of the tooth<\/p>\n

Coronal is towards the crown<\/p>\n

Prehospital<\/p>\n

Handle the tooth only by its crown<\/p>\n

1st Choice is Hank’s solution<\/p>\n

2nd is milk<\/p>\n

3rd is saline<\/p>\n

X-Rays<\/p>\n

Panorex view is the best (panoramic x-ray), though not available to most EDs<\/p>\n

<\/span>Nontraumatic Problems<\/span><\/h2>\n

<\/span>Acute Necrotizing Ulcerative Gingivitis<\/strong> (ANUG)<\/strong><\/span><\/h3>\n

painful papillae, gray pseudomembrane, trench mouth<\/p>\n

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<\/span>Dry Socket<\/strong><\/span><\/h3>\n

3-4 days post-extraction, c pain free interval, pack c dental paste<\/p>\n

Gingival hyperplasia-2nd to dilantin<\/p>\n

<\/span>TMJ Dislocation \/ Jaw Dislocation<\/span><\/h3>\n

pull jaw down then push back<\/p>\n

Mandibular dislocation at the TMJ joint JEM 2004;27(2):167 Without further sedation, a third attempt using this new technique was performed successfully. The patient’s most recent sedation had been 20 min earlier. While facing the patient, the mandible was grasped with the physician’s thumbs at the apex of the mentum and fingers on the surface of the occlusal surface of the inferior molars ( Figure 2). By applying cephalad force with the thumbs and caudad pressure with the fingers, then pivoting at the wrists, the dislocated mandible was reduced with minimal difficulty. The patient immediately resumed normal movement of his jaw. The patient was subsequently discharged in good condition. Discussion Mandibular dislocation at the TMJ is an infrequent presentation to the ED. At our institution, consisting of two EDs with approximately 100,000 combined annual visits, 37 TMJ dislocations have presented over a 7-year period, 1995\u00962002. Although infrequent, reduction of TMJ dislocation is a technique EPs must have in their repertoire. The TMJ is a ginglymoarthrodial joint, combining gliding and hinge motions. Dislocation can occur anteriorly, posteriorly, laterally or superiorly. Discussion here will be limited to anterior dislocation as occurred to our patient, as it is by far the most common type and the only to occur without a fracture [ 4]. TMJ dislocation occurs when there is an interruption in the normal sequence of muscle action during closure from maximal opening. Interruption allows elevation of the mandible before retraction. This occurs when the protracting lateral pterygoid muscles fail to relax before the masseter and temporalis muscles elevate the mandible [ 5]. The condyle travels anteriorly along the eminence and becomes locked in the anterior superior aspect of the eminence ( Figure 3). The masseter, pterygoid, and temporalis muscles go into spasm attempting to close the mandible. Trismus results and the condyle cannot return to the temporal fossa [ 3]. Muscle spasm and edema result in significant pain to the patient. (34K) Figure 3. Anatomic description of TMJ dislocation. \"\"<\/a>\"\"<\/a>\"\"<\/a> Potential causes of TMJ dislocation include any action that may involve the mouth being maximally open. Common causes include yawning and trying to chew a large food bolus. The literature has noted TMJ dislocation as a complication of anesthetic induction, intravenous sedation, Ehlers-Danlos Syndrome, trauma and even tetanus [ 4, 6, 7, 8, 9 and 10]. The complications of TMJ dislocation include recurrent subluxation\/dislocation from injury to the articulating cartilage, as well as fracture [ 11]. The prognosis is usually excellent, although recurrent TMJ subluxation\/dislocation may require surgical treatment [ 12 and 13]. Diagnosis may be made clinically if the following features are present. The patient will present with inability to close the mouth, severe pain anterior to the ears, absence of the condyle from the glenoid fossa resulting in a visible, palpable preauricular depression and a prominent-appearing lower jaw [ 14]. If dislocation is unilateral, the jaw deviates away from the involved side [ 15]. If trauma is involved, radiographic analysis is needed for the evaluation of possible fracture. Conventional techniques as described by standard Emergency Medicine textbooks describe the EP placing his protected thumbs on the occlusal surface of the patient’s molars, wrapping his fingers laterally around the mandible and then applying a constant inferior and posterior force, gliding the mandibular condyles back into the glenoid fossa. The conventional reduction technique requires the physician to manually overcome the substantial force created by the pterygoid, masseter and temporalis muscles to achieve reduction ( Figure 1). In the novel technique we describe, these forces are utilized to assist with reduction. The physician’s thumbs are placed at the mentum of the mandible to apply an upward force and the fingers are wrapped laterally around the mandible. The angle of the mandible is then used as a fulcrum with the pterygoid, masseter and temporalis muscles exerting a force parallel to the EP’s. Simultaneous pivoting action of the physician’s wrists with the thumb (anterior portion of the fulcrum) pushing superiorly and the operator’s fingers on the mandibular body pushing inferiorly allows the condyles to rotate back into the glenoid fossa ( Figure 2). It is important to note that these forces must be applied bilaterally to prevent mandibular fracture. The muscles of mastication provide assistance rather than impedance with this new technique as they promote rotation and reduction. Rather than attempting to lengthen the muscles that are in spasm to clear the condylar ridge, this technique pivots the mandibular condyle, easing the reduction into the fossa. The muscles of mastication provide a force-oriented superior and posterior. As the angle of the mandible rotates, these forces help bring reduction into the condyle. To protect the operator’s fingers during reduction, it is suggested that a bite block be used. This will prevent a human bite to the operator in the event of sudden closure of the mandible due to spasm, reduction, etc. Although not used in this particular patient, a bite block could prevent operator injury regardless of technique used.<\/p>\n

Fantastic review from B-Pod<\/a><\/p>\n

<\/span>Aphthous Ulcers (Canker Sore)<\/span><\/h3>\n

common self-limited condition that affects approximately 20% of the population at one time or another.\u00a0 Evidence exists in the literature supporting the use of Amlexanox 5% paste<\/strong>.\u00a0 Applied two to four times a day to the ulcers, healing time was significantly improved in several randomized, controlled studies.<\/p>\n

<\/span>Oropharyngeal Hemorrhage<\/span><\/h3>\n

5 cc of 1:1000 epi diluted in 5 cc of saline admin over 15 min by Neb controls this condition.\u00a0 No adverse CV effects even in the elderly pts (only three pts in study, though) (J Laryngol Otol 116:123 2002)<\/p>\n

<\/span>Traumatic Injuries<\/span><\/h2>\n

<\/span>Fractures<\/span><\/h3>\n

give dT<\/p>\n

Most dentists do not use the Ellis Classification<\/p>\n

<\/span>Crown Fractures<\/span><\/h3>\n

Uncomplicated Crown Fracture through Enamel only (Ellis I)<\/h4>\n

may need only filing to take down sharp edge.\u00a0 Refer to dentist for bonding<\/p>\n

Uncomplicated Fractures through the Enamel and the Dentin (Ellis II)<\/h4>\n

The risk of untreated injury is pulp necrosis.\u00a0 Patient’s will complain of sensitivity to air and temperature<\/p>\n

The yellow tint of the dentin can be seen through the white enamel<\/p>\n

Cover with calcium hydroxide, zinc oxide or glass ionomer.\u00a0 CaOH is probably easiest for ED use.\u00a0 Dry the tooth.\u00a0 Some would recommend giving clindamycin or penicillin. Can also cover with dermabond.<\/strong><\/p>\n

Complicated Fractures of the Crown involving the Pulp (Ellis Class III)<\/h4>\n

Often result in pulp necrosis if not treated.\u00a0 You will see the pink color of the pulp in the fracture site.\u00a0 Wipe off the tooth and observe for bleeding.\u00a0 Patient needs immediate referral or consult by a dentist or OMF surgeon.\u00a0 If referral is impossible, cover the tooth.\u00a0 Bleeding can be controlled by having the patient bite into gauze pads soaked in lido with epi<\/p>\n

<\/span>Luxations, Subluxations, Intrusions, and Avulsions<\/span><\/h3>\n

Subluxation-loose, Luxation-mobile is socket, Avulsed=Out.\u00a0 Luxations can be extrusive, lateral, intrusive, or complete<\/p>\n

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Do not replace primary teeth, they will bond to the alveolar bone.\u00a0 However, if you are unsure whether a tooth is primary or secondary, replace it as it will not bond for days.<\/p>\n

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<\/span>Alveolar Bone Fractures<\/span><\/h3>\n

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<\/span>Dentoalveolar Soft Tissue Trauma<\/span><\/h3>\n

Repair the tooth then the gums<\/p>\n

Buccal Mucosa<\/strong><\/p>\n

most don’t require repair.\u00a0 If large however, us 4-0 or 5-0 chromic.\u00a0 Bury the knots.\u00a0 Through and through injurys need to be evaluated for injury to wharton’s and stenson’s ducts.\u00a0 Wharton’s exits the buccal mucosa under the tongue in the midline.\u00a0 Stenson’s exits at the buccal mucosa at the level of the upper 2nd molar.<\/p>\n

Test all 5 branches of the facial nerve<\/p>\n

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  1. Temporal:\u00a0 elevate the brow<\/li>\n
  2. Zygomatic by shutting eyes<\/li>\n
  3. Buccal and Mandibular by having patient smile and then frown<\/li>\n
  4. Cervical by contracting the platysma<\/li>\n<\/ol>\n

    Close Lacs larger than 1 cm.\u00a0 Close the mucosa first.<\/p>\n

    Gingiva injuries<\/strong><\/p>\n

    approximate with 4-0 or 5-0 chromic.\u00a0 If there is not enough tissue, wrap the suture around a tooth.<\/p>\n

    Frenulum Injuries<\/strong><\/p>\n

    Maxillary rarely needs repair<\/p>\n

    Lingual usually does just for hemostasis<\/p>\n

    Tongue Injuries<\/strong><\/p>\n

    if it is less than a cm and its edges are not gaping, does not need to be repaired<\/p>\n

    Use 4-0 chromic, or alternatively silk.\u00a0 If using absorbables, bury the knots.<\/p>\n

    Hemorrhage<\/strong><\/p>\n