- Email: [email protected]
RESEARCHERS PROBE BIOCHEMISTRY OF TMD
NEIWSbetter than conventional grafts, says Dr. Philip J. Boyne, director, Graduate Training and chief of service, Oral and Maxillofacial Surgery at the university. "Traditional autogenous grafts to restore missing jaw bone usually meet with initial success," noted Dr. Boyne at a meeting of the American Academy of Implant Dentistry in New Orleans last October, "but long-term retention is doubtful." Porous bone mineral, Dr. Boyne explained, is derived from bovine sources. Once this material is treated to remove all organic matter, an inorganic bone-mineral base with the same physical and chemical traits as normal bone remains. Combining this synthetic bone mineral with a titanium mesh, Dr. Boyne continued, can also enhance the remodeling process and increase the bone density at the implant site. "This technique establishes an appropriate bony foundation for root implant success and a more esthetic look for the patient because of proper recontouring of facial features," Dr. Boyne concluded. RESEARCHERS PROBE BIOCHEMISTRY OF TMD
Researchers at the University of Connecticut are taking a new approach in studying the source of pain in temporomandibular disorders. Rather than focusing on the mechanics of the joint, scientists there are evaluating the chemical composition of the fluid that surrounds it. Studies have detected certain compounds in the synovial fluid of other painful dysfunctional joints. UC researchers have detected one such compound, 24 JADA, Vol. 126, January 1995
tumor necrosis factor-alpha, in the temporomandibular joints of TMD patients. Tumor necrosis factor-alpha is a cytokine, a protein associated with immune responses, including inflammation. Researchers also note a positive correlation between the levels of tumor necrosis factoralpha detected in the joint and the amount of pain reported by the patients. AIDS/HIV INFORMATION HOTLINE AVAILABLE
Health care providers and people with AIDS/HIV can obtain information about treatment options by dialing a toll-free number. The AIDS Treatment Information Service is staffed by specialists trained to provide up-to-date information about federally approved treatment guidelines and options for AIDS or HIV. The staff answers questions using the National Library of Medicine database. A joint effort among several federal agencies, including the U.S. Public Health Service and the Centers for Disease Control and Prevention, ATIS provides a comprehensive treatment information referral network. The service is available by calling (800) 448-0440, Monday through Friday, 9 a.m. to 7 p.m., EST. TDD service is available at (800) 243-7012. CORRECTION
The authors of the November JADA cover story (Esthetic update: The changing esthetic dental practice. JADA 1994;125(11): 1447-57) wish to cite additional references related to the sections on crowning and ceramic inlays/
onlays:
32. Ludwig K. Studies on the strength of all-ceramic crowns. Dent Labor 1991;5:647-51. 33. Christensen R, Christensen G, Vogl S, Bangerter V. Twoyear clinical evaluation of six inlay systems (Abstract no. 2360). J Dent Res 1991;70:561. 34. Gregory WA, Berry S, Duke E, Dennison JB. Physical properties and repair bond strength of direct and indirect composite resins. J Prosthet Dent 1992;68(3):406-11. 35. Khokhar Z, Razzoog M, Yaman P. Color stability of restorative resins. Quintessence Int 1991;22(9):733-7. 36. Arends J, Ruben J, Dijkman A. The effect of fluoride release from a fluoridecontaining composite on secondary caries: an in vitro study. Quintessence Int 1990;21(8):671-4. 37. Dickerson WG. Indirect resin inlays: all the benefits without the disadvantages. Dent Today 1991;10(4):32-6. APPOINTMENTS/ ELECTIONS/AWARDS
- Dr. Howard M. Rosenberg, Philadelphia, has been appointed assistant professor of pediatric dentistry at the University of Pennsylvania School of Dental Medicine. - Dr. Michael W. Easley has been appointed director of environmental health and community safety for the Kentucky Department for Health Services. - Dr. Ronald Woody, director of graduate prosthodontics at Baylor College of Dentistry, was elected president of the American Board of Prosthodontics. - Dr. David Allen, Stone Mountain, Ga., was elected
Researchers at the University of Connecticut are taking a new approach in studying the source of pain in temporomandibular disorders. Rather than focusing on the mechanics of the joint, scientists there are evaluating the chemical composition of the fluid that surrounds it. Studies have detected certain compounds in the synovial fluid of other painful dysfunctional joints. UC researchers have detected one such compound, 24 JADA, Vol. 126, January 1995
tumor necrosis factor-alpha, in the temporomandibular joints of TMD patients. Tumor necrosis factor-alpha is a cytokine, a protein associated with immune responses, including inflammation. Researchers also note a positive correlation between the levels of tumor necrosis factoralpha detected in the joint and the amount of pain reported by the patients. AIDS/HIV INFORMATION HOTLINE AVAILABLE
Health care providers and people with AIDS/HIV can obtain information about treatment options by dialing a toll-free number. The AIDS Treatment Information Service is staffed by specialists trained to provide up-to-date information about federally approved treatment guidelines and options for AIDS or HIV. The staff answers questions using the National Library of Medicine database. A joint effort among several federal agencies, including the U.S. Public Health Service and the Centers for Disease Control and Prevention, ATIS provides a comprehensive treatment information referral network. The service is available by calling (800) 448-0440, Monday through Friday, 9 a.m. to 7 p.m., EST. TDD service is available at (800) 243-7012. CORRECTION
The authors of the November JADA cover story (Esthetic update: The changing esthetic dental practice. JADA 1994;125(11): 1447-57) wish to cite additional references related to the sections on crowning and ceramic inlays/
onlays:
32. Ludwig K. Studies on the strength of all-ceramic crowns. Dent Labor 1991;5:647-51. 33. Christensen R, Christensen G, Vogl S, Bangerter V. Twoyear clinical evaluation of six inlay systems (Abstract no. 2360). J Dent Res 1991;70:561. 34. Gregory WA, Berry S, Duke E, Dennison JB. Physical properties and repair bond strength of direct and indirect composite resins. J Prosthet Dent 1992;68(3):406-11. 35. Khokhar Z, Razzoog M, Yaman P. Color stability of restorative resins. Quintessence Int 1991;22(9):733-7. 36. Arends J, Ruben J, Dijkman A. The effect of fluoride release from a fluoridecontaining composite on secondary caries: an in vitro study. Quintessence Int 1990;21(8):671-4. 37. Dickerson WG. Indirect resin inlays: all the benefits without the disadvantages. Dent Today 1991;10(4):32-6. APPOINTMENTS/ ELECTIONS/AWARDS
- Dr. Howard M. Rosenberg, Philadelphia, has been appointed assistant professor of pediatric dentistry at the University of Pennsylvania School of Dental Medicine. - Dr. Michael W. Easley has been appointed director of environmental health and community safety for the Kentucky Department for Health Services. - Dr. Ronald Woody, director of graduate prosthodontics at Baylor College of Dentistry, was elected president of the American Board of Prosthodontics. - Dr. David Allen, Stone Mountain, Ga., was elected