title: Comparison between the use of an ultrasonic tip and a microhead handpiece in periradicular surgery: a prospective randomised trial.
abstract: Innovations in periradicular surgery for failed treatment of orthograde root canal disease have been well-documented. We know of no prospective studies that have compared success rates of conventional methods with these presumed advances. In this prospective randomised trial we compare the use of an ultrasonic retrotip with a microhead bur in the preparation of a retrograde cavity. Outcome was estimated clinically by estimation of pain, swelling, and sinus, and radiographically by looking at infill of bone and retrograde root filling 2 weeks and 6 months postoperatively. Both methods used other surgical techniques including microinstruments to place the retrograde root filling. The success rate of the ultrasonic method was higher (all patients, n=26) than that of the microhead method (n=19 of 21). A larger study with longer follow up is required to consolidate this evidence.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Falkirk and District Royal Infirmary, Majors Loan, Falkirk, United Kingdom. jane.shearer@nhs.net
authors.forename: Jane
authors.initials: J
authors.lastname: Shearer
authors.forename: Joseph
authors.initials: J
authors.lastname: McManners
mesh_terms: D001047:Apicoectomy / Q000295:instrumentation*; D003751:Dental Fistula / Q000209:etiology; D004487:Edema / Q000209:etiology; D004867:Equipment Design; D005500:Follow-Up Studies; D006801:Humans; D008866:Microsurgery / Q000295:instrumentation; D010147:Pain Measurement; D010149:Postoperative Pain / Q000209:etiology; D011183:Postoperative Complications; D011446:Prospective Studies; D012184:Retrograde Obturation / Q000295:instrumentation; D012387:Root Canal Filling Materials / Q000627:therapeutic use; D018915:Root Canal Preparation / Q000295:instrumentation*; D016896:Treatment Outcome; D014464:Ultrasonic Therapy / Q000295:instrumentation*; D014945:Wound Healing / Q000502:physiology; D015035:Zinc Oxide-Eugenol Cement / Q000627:therapeutic use
chemical_list: D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement