title: Radiation dose reduction during endodontic therapy: a new technique combining an apex locator (Root ZX) and a digital imaging system (RadioVisioGraphy).
abstract: This study was undertaken on 14 teeth in order to evaluate a new technique for radiation dose reduction during endodontic therapy. After examination of the preoperative film, usually available in the patient file, an apex locator (Root ZX) was used to measure the working length. Complete chemomechanical debridement was then performed, and the master cone was evaluated by a digital imaging system (RadioVisioGraphy (RVG)). Obturation was performed when measurements of the electronic device and RVG were comparable. A postoperative image was made by the RVG system to evaluate the final obturation. A clinical and radiographic follow-up examination (follow-up period: 6 to 8 months) revealed satisfactory apical healing. These results indicated that a successful obturation technique can be performed by a single radiation exposure, using the RVG unit for master cone evaluation. This technique may be useful in medically compromised patients who need not to be exposed to excessive or repeated radiation during endodontic therapy.
authors.affiliation: Department of Restorative Dental Sciences, Endodontic Division, P.O. Box 60169, Riyadh 11545, Kingdom of Saudi Arabia.
authors.forename: A Y
authors.initials: AY
authors.lastname: Saad
authors.forename: S
authors.initials: S
authors.lastname: al-Nazhan
mesh_terms: D001729:Bismuth / Q000627:therapeutic use; D003786:Dental Pulp Cavity / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D004338:Drug Combinations; D004582:Electronics, Medical / Q000295:instrumentation*; D004853:Epoxy Resins; D005500:Follow-Up Studies; D006171:Gutta-Percha / Q000627:therapeutic use; D006801:Humans; D008709:Methenamine / Q000627:therapeutic use; D011829:Radiation Dosage; D019252:Radiography, Dental, Digital; D012387:Root Canal Filling Materials / Q000627:therapeutic use; D012389:Root Canal Obturation; D018915:Root Canal Preparation / Q000295:instrumentation; D012390:Root Canal Therapy; D012834:Silver / Q000627:therapeutic use; D014025:Titanium / Q000627:therapeutic use; D019227:Tooth Apex / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D016896:Treatment Outcome; D014945:Wound Healing
chemical_list: D004338:Drug Combinations; D004853:Epoxy Resins; D012387:Root Canal Filling Materials; D012834:Silver; C028044:epoxy resin AH-26; D006171:Gutta-Percha; D014025:Titanium; D008709:Methenamine; D001729:Bismuth