Edward L. Mosby

Efficacy of temporomandibular joint arthroscopy: A retrospective study

One hundred fifty temporomandibular joints (TMJs) in 109 patients underwent arthroscopic surgery with lysis, lavage, and debridement. The patients were evaluated for preoperative and postoperative interincisal opening, lateral and protrusive excursions, and pain. There was general improvement in all categories, with a reduction of pain to a level that was manageable in 93% of the patients. Temporomandibular arthroscopic surgery is an effective procedure, improving TMJ hypomobility and reducing pain.

Technique for rigid fixation of Le Fort and palatal fractures

Abstract In the surgical repair of Le Fort fractures, fixation is accomplished with either stainless steel wires or bone plates. In 10 patients treated during the last three years at Truman Medical Center, we found that the posterior lateral wall of the sinus, or buttress, had been severely comminuted, making such fixation difficult. With midpalatal fractures, which often accompany Le Fort fractures, palatal collapse and buccal torque of the segments are additional problems. Head frames can be used to maintain vertical dimension in the former cases, but a much simpler technique is available. A similar technique can also be used for midpalatal fractures.

Bone hole diameter as a function of drill guide length and drilling method in rigid internal fixation

This study examines drill guide length and drilling method to see which technique produces the most accurate hole diameter. Two hundred twenty-five holes were produced in fresh porcine mandibles and then measured with a micrometer. A long guide, a short guide, and no guide were used with a drill press, a pneumatic drill, and a manual drill. Using a 2-mm drill bit, the overall average diameter was 2.03 mm and the overall range was 1.85 mm to 2.60 mm. Statistical analysis of the data indicates the drilling method and the guide length made no difference in the hole diameter at the 95% level (P = .05).

Injection obturation in surgical endodontics

Abstract A detailed description of an endodontic obturation technique is presented. With the use of a modified 18-gauge stainless steel needle and a 1 c.c. tuberculin syringe, a thick homogeneous mix of zinc oxide and eugenol is injected so as to obliterate the canal space. Although there is no histologic evidence at this time to confirm the value of this technique, it has been used for more than 20 years with apparent clinical success.

Acetominophen toxicity: Report of two cases☆

Both chronic low-dose use within accepted therapeutic limits and acute overdosage of acetominophen with as little as 7 Gm or 150 mg./kg. can result in irreversible centrilobular hepatic necrosis. Prompt and proper treatment with N-acetyl-cysteine in strict adherence to accepted protocol will prevent potentially fatal results. Clinicians who prescribe acetominophen must likewise be cognizant of other potential side effects, such as methemoglobinemia, hemolysis, and prothrombin suppression.

Apertognathia: Its challenge and conquest: Report of a case

Apertognathia or open-bite deformity is the cause of poor speech, loss of masticatory function, and the resultant embarrassment of patients. The treatment of these malocclusions embodies the use of our own technical, scientific, and physiologic knowledge, coupled with the research of others. This article gives a solution to an unusual case and points out the present techniques and research are only building blocks for the future.