Tag Archives | ct

Computer Assisted Retrieval of Accidentally Displaced Wisdom Teeth

An article titled “Use of Computer-Assisted Navigation in the Retrieval of Accidentally Displaced Third Molars,” appears in the 2016 Journal of Oral and Maxilofacial Surgery, written by Yi Guo and et al., vol. 74, pp. 889-894. The article describes using a computer to retrieve accidentally displaced mandibular third molars. A total of 12 patients in the study successfully had their roots retrieved. They all healed successfully without complications. In rare cases when performing wisdom teeth surgery, a tooth or a tooth root can be displaced. When they are displaced into difficult to access areas surgery retrieving the displaced molars should be performed by conventional methods which include extending the original operative exposure or planning a new operative approach and then finding and removing the tooth. This surgery can cause severe tissue injury or complications. The paper discusses computer-assisted navigation in the retrieval of displaced mandibular third molars and to evaluate the effectiveness of this method. The criterion for using this technique of computer-assisted navigation involved teeth or tooth fragments that were displaced into difficult-to-access areas (sublingual space, pterygomandibular space, lateral pharyngeal space, submandibular space, and lateral cervical space). To localize the displaced mandibular third molar or root fragment computed tomographic […]

Continue Reading 1

The Image Gently Campaign in Dentistry

If you keep abreast at all with radiation exposure from medical imaging, you may have heard of the Image Wisely campaign. The Imagely Wisely Campaign was designed to have people aware of the fact that certain medical imaging tests such as CT exams are sometimes over used and do not have to be used in certain instances. The goal is to reduce radiation exposure to patients while still providing good medical care, see http://www.imagewisely.org/. The Image Gently campaign is designed to provide information to parents and others to help reduce exposure to radiation for children, see http://imagegently.org/, and has been around since 2007. The campaign is supported by the Alliance for Radiation Safety in Pediatric Imaging, which is a coalition of healthcare organizations dedicated to providing safe and high-quality pediatric imaging. Recently, it has been announced that a new Image Gently campaign in dentistry will be launched in September, 2014. The Image Gently alliance partners in dentistry consist of groups such as the American Dental Association and American Association of Oral and Maxillofacial Surgeons. The campaign states that radiographic selection should be based on professional judgment after taking a history and clinical examination. The campaign says that x-rays should be selected for individual needs […]

Continue Reading 0

Using Computed Tomograph (CT) To Lower the Incidence of Wisdom Teeth Removal Nerve Injuries

A question that everyone who has wisdom teeth wants to know these days is the following: “If you use Computed Tomography (CT) can it lower the risk of developing a nerve injury from having wisdom teeth removed?” Three authors from Spain (Sanmarti-Garcia, Valmaseda0-Castellon, Gay-Escoda) recently conducted a study asking this question titled “Does Computed Tomography Prevent Inferior Alveolar Nerve Injuries Caused by Lower Third Molar Removal?” appearing in the Journal of Oral and Maxillofacial Surgery (vol 70, pages 5-11, 2012). The issue is as stated by the authors is that “panoramic radiography alone cannot identify the buccolingual position of the mandibular canal and the 3M roots.” Computed tomography (CT) is able to show this information. Even so an estimated 40% of cases show superposition of the roots and the mandibular canal. Hence many of the potential CTs performed may potentially add additional costs and exposes patients to additional radiation without in some cases adding any clinically useful information to the pre-surgical picture. The authors state “the utility of CT in the extraction of a 3M is questionable because in most cases it does not modify the surgical technique, it seems to have a low positive predictive value for IAN injury […]

Continue Reading 3

Powered by WordPress. Designed by Woo Themes