Category Archives: Complex Odontogenic Infections

Machinery Account

Machinery Account Return of goods Should a hire purchase’ customer fail to pay an instalment, the goods as well as the instalments already paid, are liable to be ‘forfeited. If the hire vendor takes possession of the entire goods, the hire purchaser has. no option but to write. off the loss thus incurred. The entries made by the hire purchaser at the time to purchase of the goods will determine what


BIBLIOGRAPHY Andreassen}, Rud ]: Correlation between histology and radiog- ‘raphy in the assessment of healing after endodontic surgery in 70 cases, lilt I Oral Surg 1:161, 1972. El Decb, ME, Tabibi A.,Jensen MRJr: An evaluation of the use of amalgam, Cavit-and calcium hydroxide in the repair of furcation perforations, J Ended 8:459, 19S2. El-Swiah JM, Walker RT: Rea-oris for apicectomies: a retrospective stu


WHEN TO CONSIDER REFERRAL Although many of the procedures presented in this chapterappear relatively straightforward, endodontic surgery is often complex and difficult to perform. Cliniciansshould carefully Consider the problems before undertaking such surgeries. Determining the Cause of Root Canal Treatment Failure Two steps are critical to success, particularly if surgery is being considered: (1) identificatio


ADJUNT Same of the newer devices and materials have enhanced 1,cases, improved surgical procedures. These include the light and magnification devicesand techniqucs of guided tissue regeneration. Light and  agnification Devices microscope. Relatively recently the microscop has been adapted and used for surgery, .as well as for otherdiagnostic and treatment procedures in endodontics (Fig 17-O).11 Advantages of th


RECALL Recall evaluations to assess long-term healing are important. Some failures after surgery are evidenced only by radiographic findings. A I-year follow-up is generally a good indicator. If, after 1 year, radiographic evidence shows no decrease in lesion size or lesion size increases, it generally indicates a failure and persistent inflammation. P’ A decrease in lesion size (indicating hard tissue


HEALING Healing after endodontic’ surgery is rapid because most tissues being manipulated are’ healthy, with.a good blood supply, and tissue.replacement enables repair by primary intentton.F Both soft tissues (i.e., periosteum, gingiva, alveolar mucosa, periodontal ligament) and hard tissues FIG. 17-25 Postperforation repair. A, lesion developing lateral to off-centered postsuggests perforationthat


CORRECTIVE SURG1RY “Corrective surgery is managing defects that have occurred by a biologic response (Le., resorption or iatrogenic (i.e., procedural) error, These may be anywhere on the root, from cervical margin to apex. Many are accessible; others are difficult to reach or are in virtually inaccessible areas. Usually, an injury or defect has occurred on the root. In response to the injury, there may


PERIAPICAL SURGERY Periapical (i.e., periradicular) surgery includes resection of a portion of the root that contains undebrided or unobturated (or both) canal space. It can also involve reverse filling and sealing of the canal when conventional root canal treatment is not feasible. It is often performed in conjunction with apical curettage for reasons explained later in this chapter. Indications The success o


DRAINAGE OF AN ABSCESS and exudates from a focus of liquefaction necrosis (i.e., abscess). Draining the abscess relieves pain, increases circulation, and removes a potent irritant. The abscess may be confined to bone or may have eroded through bone and periosteum to. invade soft tissue. Managing these or extraoral swellings by incision for drainage is reviewed in Chapters IS and 16. BOX 17-1  Categories of En

Principles of Endodontic Surgery

Principles of Endodontic Surgery CHAPTER OUTLINE DRAINAGEOF AN ABSCESS PERIAPICALSURGERY Indications Anatomic Problems Restorative Considerations Horizontal Root Fracture Irretrievable Material in Canal Procedural Error large Unresolved l,esions After Root Canal Treatment Contraindlcations (or Cautions) Unidentifie.d Cause of Treatment Failure When Conventional Root Canal Treatment is Possible Simultaneous Root Ca