The clinical diagnosis of ankylosis can be made only when the affected tooth gives positive evidence of an inability to move. The inability to move is demonstrated either as a failure of the tooth to move with normal vertical dental alveolar growth or a failure of the tooth to move when the tooth is subjected to an orthodontic force system. This case report describes the autotransplantation of an ankylosed maxillary canine.
Ankylosis ; Tooth

This clinical note introduces a method to assist surgeons in performing single-tooth dento-osseous osteotomy. For use in this method, a surgical guide was manufactured using computer-aided design/computer-aided manufacturing technology and was based on preoperative surgical simulation data. This method was highly conducive to successful single-tooth dento-osseous segmental osteotomy.
Osteotomy* ; Tooth Ankylosis

Etiologies of the molar teeth impaction are cyst, supernumerary teeth, ankylosis by replacement by replacement resorption, abnormal eruptive path. improper orthodontic treatment, etc. If the impacted teeth were untreated, the sequallae was as follows : loss of occlusal function, loss of permanent tooth, extrusion of opposite tooth, root resorption of adjacent teeth. The most important factor solution of impacted teeth is treatment timing & proper application of orthodontic forces.
Ankylosis ; Molar* ; Root Resorption ; Tooth* ; Tooth, Impacted ; Tooth, Supernumerary

Impaction with a severely dilacerated root is seldom reported, especially in the maxillary incisor. It is probably because of the high clinical difficulty associated with bringing the dilacerated tooth into proper position, and the high chance of failure due to ankylosis, external root resorption, and root exposure after orthodontic traction. Even the successful cases may need periodontal surgery to improve the unesthetic gingival shape. However, it has previously been reported that an impacted maxillary central incisor was successfully treated by proper crown exposure and orthodontic traction. This article presents a case of an invertedly impacted maxillary right central incisor with a developing dilacerated root, which was aligned into proper position after orthodontic traction composed of two stages of a closed eruption technique.
Ankylosis ; Crowns ; Incisor* ; Root Resorption ; Tooth ; Traction

One of the common complications of dental injury is tooth ankylosis. Unlike adults, when tooth ankylosis occurs in the adolescents, ankylosis interfered the growth of the adjacent alveolar bone, resulting in the developmental failure of the alveolar bone and subsequent open bite. The most common treatment option for ankylosed tooth is extraction. However, when prognosis of ankylosed tooth after extraction is expected to be poor due to severity of infrapositioning or prosthetic replacement cannot be performed immediately, various treatment options should be considered. This report suggests multidisciplinary treatment that might bring functionally and esthetically favorable result included alveolar bone distraction osteogenesis and decoronation of ankylosed maxillary anterior tooth with orthodontic and prosthetic treatments.
Adolescent* ; Adult ; Ankylosis ; Humans ; Incisor* ; Open Bite ; Osteogenesis, Distraction* ; Prognosis ; Tooth ; Tooth Ankylosis

If dental ankylosis occurs in maxillary incisors of a growing child, the ankylosed tooth can not move vertically with the subsequent disturbance in vertical growth of the alveolar process. Because ankylosed tooth does not respond orthodontic force, extraction was recommended in the past. But the loss of tooth and accompaning alveolar bone loss incur compromised esthetic situation. And it is very hard to replace by prosthetics. So intentional surgical luxation and orthodontic movement was attempted, but usually this approach is followed by recurrence of the ankylosis. Nowadays the unitooth subapical osteotomy and rapid movement of block bone was reported. Two cases are presented, one is treated by intentional luxation and the other is by unitooth subapical osteotomy following application of light continuous force soon.
Alveolar Bone Loss ; Alveolar Process ; Ankylosis ; Child ; Humans ; Incisor* ; Osteotomy ; Recurrence ; Tooth ; Tooth Ankylosis

The purpose of this report is to present the cause and treatment of posterior open bite. Posterior open bite is the open bite limited to posterior teeth. These problem usually are attributed to a mechanical interference with the eruption process, either ankylosis or some soft tissue interference. But, in some patient, lateral open bite is due to a disturbance of the eruptive mechanism itself and other disease or side effect following other treatment. Distinguishing cause of posterior open bite, lack of eruption due to some external interference with eruption or primary failure of eruption mechanism, is important clinically because this determines the prognosis for orthodontic treatments. The characteristics, differential diagnosis with posterior open bite due to other etiologies and the treatment of these problems are presented and discussed.
Ankylosis ; Diagnosis, Differential ; Humans ; Open Bite* ; Prognosis ; Tooth

Adolescent ; Humans ; Male ; Tooth Ankylosis ; etiology ; surgery ; Tooth Extraction ; methods ; Tooth Root ; Wounds and Injuries ; complications

Calcium hydroxide (CH) is the gold-standard intracanal dressing for teeth subjected to traumatic avulsion. A common complication after the replantation of avulsed teeth is root resorption (RR). The current review was conducted to compare the effect of CH with that of other intracanal medications and filling materials on inflammatory RR and replacement RR (ankylosis) in replanted teeth. The PubMed and Scopus databases were searched through June 2018 using specific keywords related to the title of the present article. The materials that were compared to CH were in 2 categories: 1) mineral trioxide aggregate (MTA) and endodontic sealers as permanent filling materials for single-visit treatment, and 2) Ledermix, bisphosphonates, acetazolamide, indomethacin, gallium nitrate, and enamel matrix-derived protein (Emdogain) as intracanal medicaments for multiple-visit management of avulsed teeth prior to the final obturation. MTA can be used as a single-visit root filling material; however, there are limited data on its efficacy due to a lack of clinical trials. Ledermix and acetazolamide were comparable to CH in reducing RR. Emdogain seems to be an interesting material, but the data supporting its use as an intracanal medication remain very limited. The conclusions drawn in this study were limited by the insufficiency of clinical trials.
Acetazolamide ; Ankylosis ; Bandages ; Calcium Hydroxide ; Calcium ; Dental Enamel ; Diphosphonates ; Gallium ; Indomethacin ; Miners ; Pemetrexed ; Replantation ; Root Resorption ; Tooth Ankylosis ; Tooth Avulsion ; Tooth Replantation ; Tooth

PURPOSE: The purpose of this study was to evaluate the effects of platelet-rich plasma (PRP) on periodontal healing of replanted root surfaces in dogs histologically and histomorphometrically. METHODS: A total of 36 roots of mandibular incisors and premolars from 6 mongrel dogs were used. The roots were randomly divided into 3 groups: 1) a positive control group (n=12), in which the periodontal ligament (PDL) and cementum were retained and the roots were soaked in saline; 2) a negative control group (n=12), in which the PDL and cementum were removed and the roots were soaked in saline; and 3) an experimental group (n=12), in which the PDL and cementum were removed and the roots were soaked in PRP. After soaking the root surfaces, the extracted roots were replanted into the extraction sockets. The roots were covered using a coronally repositioned flap RESULTS: Histologically, irregular-thickness PDL-like and cementum-like tissues were observed in the 4-week experimental group and the positive control group. PDL-like tissue and cementum-like tissue with a more uniform thickness were observed at 8 weeks. In the negative control group, PDL-like tissue and cementum-like tissue were rarely found, and root resorption and ankylosis were observed. In the cross-sectional histomorphometric analysis, the experimental group demonstrated a higher rate of formation of cementum-like tissue and a lower tooth ankylosis rate than the positive and negative control groups at 4 and 8 weeks. Although there was a significant difference in the tooth ankylosis rate and the formation of cementum-like tissue across the 3 groups (P < 0.05), no statistical significance was observed between any pair of groups (P > 0.017). CONCLUSIONS: Applying PRP to root surfaces during tooth replantation in dogs can reduce tooth ankylosis and increase PDL-like and cementum-like tissue formation.
Animals ; Ankylosis ; Bicuspid ; Clothing ; Dental Cementum ; Dogs ; Incisor ; Periodontal Ligament ; Periodontitis ; Platelet-Rich Plasma ; Root Resorption ; Tooth Ankylosis ; Tooth Replantation ; Tooth