Pericoronitis

Overview Periodontitis is the process of tooth eruption caused by the complications of a major performance for the crown soft tissue inflammation. Clinically, most patients with mandibular third molars (commonly known as wisdom teeth). Followed by the upper third molar may occur. The disease occurred in 18 ~ 30 years of age. Cause pathogenesis third molar eruption difficulties caused Pericoronitis factors. The reason for this is due to have a molar eruption position inconsistent with the human species occurrence and evolutionary process, as food, and chewing habits of changes have gradually degraded under the jaw. Molar impacted the type of Pericoronitis There were also affected to a certain extent. Clinical eruption on the part of the vertical and near-strangers tilt impacted the most, the most common cause pericoronitis. Eruption incomplete crown location below most of the second molars bite plane, and its distal buccal, lingual often gums flap, Gingival flap between the crown and formed deep and narrow Blind bag, it self-cleaning effect poor, vulnerable possession of food residues, The temperature and humidity of bacterial growth is a good breeding conditions. Under normal circumstances, strong body resistance, and the bacteria will not succeed. However, when the body cold, insufficient sleep, fatigue and other conditions have led to low human resistance decline, this time multiplication of bacteria causing infections. Biting and chewing gums flap on the mechanical damage, mucosal ulceration occurred, undermining the defense function, so opportunistic bacteria can also cause pericoronitis. Clinical manifestations Pericoronitis initially only inflamed gingival pain, chewing and swallowing aggravating, there will be increasing appetite pain, When the infection spread to consume muscle and lateral pterygoid muscle may arise when trismus. There will be local swelling, lymph node can be increased and tenderness. At this point, there may be systemic symptoms, such as general malaise, fever and increased leukocyte. Incidence 2 ~ 3 days if not pain, prolonged fever, may consider the development of suppurative inflammation period. Incision so in a timely manner, inflammation will be gradually dissipated. So no infection control, the proliferation of inflammation, infection to the masseter muscle, cheek, parapharyngeal, mandibular such diffusion of the corresponding gap space infection. May lead to further serious complications. According to clinical examination for a third molars, dental X-ray film were confirmed to clinical manifestations, it is not difficult to make a diagnosis. Sometimes repeated infections, the first oral vestibular mandibular gingiva cheek grinding groove Department has a fistula, This is acute inflammation subperiosteal abscess weak resistance to the front chewing muscles caused by violations. It should be noted at this time, should not be misdiagnosed as the first mandibular molar infection. Pericoronitis early treatment should be local control of bacterial infection, partial treatment is very important, available 3% hydrogen peroxide or a : 5000 washing liquid potassium permanganate gingival pockets reapplied glycerol into methyl phenol or iodine. Patients can rinse agent, mouthwash several times a day. Maintaining good oral health. In addition to antibiotic treatment, because of the common bacteria Staphylococcus aureus, the use of anti-Staphylococcus aureus antibiotics. If abscess limitations should be under local anesthesia and surgery. Indomethacin, to remove pathogenic teeth. For long-term disunion fistula, in the same time curettage fistula extraction of granulation tissue. If molars normal position, with the teeth and gums flap resectability eliminate blind bags. But sometimes this approach ineffective for patients with recurrent, still extracted teeth.