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Results for “Tooth Avulsion”

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At least 127 records · Page 7Linked to original sources
PubMed1993

Osteoconduction exerted by methylpyrrolidinone chitosan used in dental surgery.

Surgical wounds from wisdom tooth avulsions were medicated with freeze-dried methylpyrrolidinone chitosan, a gel-forming resorbable biopolymer obtained from crab chitosan by chemical modification. Methylpyrrolidinone chitosan promoted osteoconduction and the space left after avulsion was filled with newly formed bone tissue, which conferred desirable mechanical and physiological characteristics to the healed would site. Morphological evidence obtained from biopsies confirmed the radiographic data. Methylpyrrolidinone chitosan was progressively depolymerized by lysozyme and was no longer detected 6 months after surgery. None of the 10 patients reported adverse effects over one year of observation.

Bone Regeneration↗
PubMed2003

[Replacement of a missing tooth with transplantation. Case report].

The replantation and transplantation are wide-spread therapies applied in case of tooth avulsion. It is also possible for such a tooth not to get back into the original socket, and it would be replaced to another tooth alveoli. In this presented case we transplanted a wisdom tooth to the place of the first lower molar immediately after extraction. The same time, by this case we discussed the therapeutical principles and possible prognosis too.

Adult↗
PubMed1996

Resumed tooth development following avulsion of a permanent central incisor.

A case is presented in which an upper right central incisor was avulsed because of trauma at age six. At the time of trauma it was suspected that the pulp had remained in the socket although the tooth had been lost. No attempt was made to treat the socket, remove the pulp, or replant the tooth. Follow-up radiography showed that, despite initial apparent complete loss of the calcified portion of the tooth, root development proceeded to completion.

Child↗
PubMed2001

Incidence of oral tissue trauma after the administration of general anesthesia.

BACKGROUND: Administration of general anesthesia necessitates certain amounts of manipulation or instrumentation within the mouth that may cause some oral tissue injuries. The purpose of this study was to determine the incidence of oral tissue trauma after receiving general anesthesia. Some possible risk factors were explored. METHODS: Four hundred and four adult patients receiving surgical procedures under general anesthesia facilitated by endotracheal intubation were included in this prospective survey. In each patient detailed oral and dental conditions were evaluated and recorded by an oral surgeon before and after operation. The extent of oral tissue trauma were computed and the type and character of the injury were recorded. RESULTS: Twenty-eight patients (6.9%) were found to sustain various degrees of oral trauma that included soft tissue laceration, tooth fracture, prosthesis damage, tooth avulsion, ecchymosis and numbness of tongue. Preexistence of missing tooth, crown, and residual root were some possible risk factors that might predispose to complication. CONCLUSIONS: Oral tissue trauma as it seems to be a common anesthetic complication that should be considered as a recognized hazard of general anesthesia. Understanding and recognizing oral anatomical condition and pathological change before anesthesia may help the anesthesiologists in preventing oral and dental complications and thus to avoid legal suits.

Adolescent↗
PubMed1992

Replanting avulsed primary teeth.

Tooth replantation is a viable procedure if performed under the following acceptable guidelines: Replant the tooth if time lapse is less than 30 minutes (a time lapse of more than one to two hours results in a poor prognosis); Transport the tooth or teeth in milk, saliva or blood; and Keep teeth and replant area clean to minimize infection. Quick action by the mother in bringing the child to the hospital emergency room was a vital first step. The fact that the child held the teeth in her mouth en route to the hospital--bathed in saliva and blood, still attached by the bit of gingival tissue in the warm mouth's environment--helped to contribute to a positive situation as well as did the good home care.

Child, Preschool↗
PubMed1990

Acquired maxillofacial defects from motor vehicle accidents: statistics and prosthodontic considerations.

Trauma from motor vehicle accidents is one of the leading causes of death in the United States; moreover, the costs related to personal harm are only second to cancer. Head and neck injuries predominate and involve contact with the vehicle's interior (80%), contact with the vehicle's exterior (12%), or noncontact with the vehicle (8%). The patient with maxillofacial defects resulting from motor vehicle accident will have numerous soft tissue and hard tissue injuries ranging from neurologic involvement to fractures and/or avulsions of the temporomandibular joint, maxillae, mandible, teeth, and supporting structures. Tooth avulsions, pulpitis, and fractures without pulpitis have been found in a 4:2:1 ratio. The prosthodontist plays an important team role by anticipating the increased functional demands that may be placed on the required prostheses and by anticipating the preprosthetic procedures and counseling that may be necessary to assist in the total treatment.

Abbreviated Injury Scale↗
PubMed2005

Results after replantation of avulsed permanent teeth. III. Tooth loss and survival analysis.

Avulsed permanent teeth were replanted following immediate extraoral endodontic treatment by insertion of posts from a retrograde direction. Some teeth were rescued in a physiologic environment (tissue culture medium contained in a tooth rescue box), and in some cases antiresorptive-regenerative therapy (ART) was used. The aim of the study was to identify variables that influence the incidence of tooth loss and the survival of avulsed and replanted permanent incisors. Twenty-eight permanent teeth in 24 patients aged 7-17 years were investigated. In all teeth extraoral endodontic treatment by retrograde insertion of posts was performed. All nine teeth with functional healing (FH) were in situ. Of the 19 teeth with non-FH, seven were removed to allow transplantations. Two teeth were removed due to severe infrapositions. One tooth was lost following a new trauma. No tooth was lost due to acute infections. In descriptive statistics the incidence of tooth loss was significantly related to healing (P = 0.0098, Fisher's exact test), to treatment planning, i.e. consecutive replantation of premolars and primary canines (P = 0.0001, Fisher's exact test) and to immediate physiologic rescue (P = 0.0394). ART was related to tooth loss when tested in teeth with a compromised periodontal ligament (P = 0.0389). No influence could be found for the parameters maturity, age and all other factors. In a regression analysis treatment planning was the only factor left which had a significant influence (P = 0.0002). The estimated mean survival time (Kaplan-Meier analysis) for all teeth was 57.3 months. The survival was significantly reduced (P = 0.0002, log rank test) when consecutive transplantations were intended and performed. No influence could be found for maturity, age and all other factors. The different findings to previous studies can be explained by the prevention of complications related to conventional endodontic treatment approaches. Statistics have to be carefully interpreted due to case preselection which is determined by the treatment guidelines and actual treatment options of the individual treating dentist.

Adolescent↗
PubMed1992

Esophageal perforation by a tooth in child abuse.

A unique case of child abuse in a six-year-old Hispanic girl is reported. In this case, a tooth avulsed and swallowed during an episode of physical abuse and/or sexual abuse, caused an esophageal perforation resulting in a retropharyngeal abscess and mediastinal abscess containing the tooth. Although traumatic esophageal injuries in child abuse have occurred, the presence of a tooth within the mediastinal abscess is an unique manifestation of child abuse.

Abscess↗
PubMed1997

Dental transplants: discussion and case report.

A 21-year-old Chinese male patient presented to an urban dental clinic with a transplanted molar, which had been removed from a human cadaver. The tooth was in occlusal function for three years, stable, and without mobility. Radiographs of the tooth showed root resorption and apparent ankylosis. Individual transplantation of human teeth has been considered surgical dental treatment of an empirical nature for centuries. Two types of human tooth transplantation are usually considered in the dental literature. An allotransplantation or allograft is a transplantation of tissue (tooth) between different individuals of identical species. An autotransplantation or autograft is a transplantation of tissue within the same individual (obviously within the same species). Replacement of an avulsed tooth, while technically an autograft is considered a replantation, rather than a transplant. Tooth transplantations in the late 20th century are usually performed in developing third world countries, where patient dental education is minimal, and the cost of more technology based forms of tooth replacement (prosthodontics, synthetic implants) are economically prohibitive. Transplantation of permanent teeth is rarely seen in the United States in the 1990's due to the use of titanium implants, although pediatric, adolescent, and disabled patients, especially those with limited incomes, could benefit from the re-introduction of dental transplants.

Adult↗
PubMed1993

Phantom tooth diagnosis and an anamnestic focus on headache.

The cause of atypical odontalgia has been related to many factors, including psychological ones. Animal experiments indicate that tooth pulp extirpation provokes a deafferentation, which may or may not induce pain, depending on unknown factors. The research described here showed that human tooth avulsion induces atypical odontalgia when it is carried out in migraine and cluster headache sufferers. Conversely, no sensation is reported by personally and familiarly headache-exempt subjects who underwent the same type of tooth extraction.

Case-Control Studies↗
PubMed1980

Rationale for treatment and management of avulsed teeth.

Fifteen hours after the patient's tooth was avulsed in a bicycle accident, replantation procedures began. This case presents a process of replantation and its success. An avulsed tooth is a traumatic experience. Replantation is often of psychological value. Although the possibility of the eventual loss of the tooth should be explained to the patient, replantation reduces the traumatic effect of the accident. It also has clinical value. Successful replantation results in prolonged retention which will improve esthetic appearance, arch form, chewing, enunciation, and integrity of the arch. Use of calcium hydroxide in avulsed teeth has allowed the rate of replantation success to increase greatly. It is a practical technique that is scientifically sound, has many positive indications, and has provided an invaluable service to patients.

Aged↗
PubMed2000

Management of sports-related tooth displacements and avulsions.

Between 500,000 and 750,000 dental injuries occur each year during sports activities in the United States. Twenty percent of these are tooth displacements: extrusive or lateral luxations, intrusions, or exarticulations. Such injuries pose serious problems and the manner in which they are treated can affect the prognosis. This article discusses displacement injuries and recommends optimal treatment for each type of displacement.

Athletic Injuries↗
PubMed2002

Assessment of post-traumatic PDL cells viability by a novel collagenase assay.

Both length of extra-alveolar time and type of storage media are significant factors that can affect the long-term prognosis for replanted teeth. Numerous studies have examined various media in an attempt to determine the ideal material for storage of the avulsed tooth. The purpose of this study was to compare the number of viable periodontium ligament (PDL) cells in different storage media using a collagenase assay. Thirty-three freshly extracted human teeth were divided into four experimental and two control groups. The positive and negative controls corresponded to 0 min and an 8-h dry time, respectively. The experimental teeth were stored dry for 30 min and then immersed in one of four media (Hank's balanced salt solution (HBSS), milk, saline, water) for 45 min. The teeth were then treated with dispase grade II and collagenase for 30 min. The number of viable and nonviable PDL cells was counted with a hemocytometer and analyzed. An ANOVA demonstrated no statistically significant differences in the viability of PDL cells among saline, HBSS and milk. Within the parameters of this study, it appears that milk or saline is an equally viable alternative to HBSS for storage of avulsed teeth.

Analysis of Variance↗
PubMed2001

Effect of denervation on healing after tooth replantation in the ferret.

Studies have shown that the sensory nerves participate in inflammation and immune responses and possess trophic-facilitating wound healing in general. Tooth avulsion represents a pulpal and periodontal injury, and the mechanisms involved in the healing responses subsequent to replantation of teeth are still unclear. The objective of this study was to investigate the healing responses after denervation and replantation of teeth. Unilateral denervation was performed in 15 ferrets by axotomy of the inferior alveolar nerve, 5 days before extraction of the first lower premolars. Six weeks later the mandibles were excised and processed for histological evaluation. Immunohistochemistry was performed using antibodies against the sensory neuropeptides substance P (SP) and calcitonin gene-related peptide (CGRP), and measurements of root resorption and ankylosis were performed in four sections from each replanted tooth. After 6 weeks substantial reinnervation was observed in the jaws. Immunoreactivity in the pulp was observed in only two replanted teeth on the denervated side, compared with four on the innervated side. Total pulp necrosis appeared in 10 replanted teeth on the denervated side and in 5 on the innervated, indicating that sensory nerves promote survival of the pulp after replantation. SP-immunoreactive (IR) fibers were more frequently observed in the resorptive lacunae than CGRP-IR fibers. However, resorptive areas lacking IR fibers were frequently found along the root surface. Root resorption averaged 0.062 +/- 0.029 mm2 on the innervated side compared to 0.016 +/- 0.0043 mm2 on the denervated (P< 0.02). Ankylosis was observed in four of the replanted teeth on the innervated side (169.3 +/- 49.7 microm) and in six on the denervated side (332.56 +/- 193.2 microm) (P = 1). It is concluded that the sensory nerves promote root resorption after pulpoperiodontal injuries but have less influence on the osteoblastic activity expressed by ankylosis.

Animals↗
PubMed1999

Traumatic injuries of the teeth in connection with general anaesthesia and the effect of use of mouthguards.

The aim of the present study was to describe the frequency of dental injuries over a 10-year period, where a mouthguard was used in approximately 10% of intubation cases or endoscopying. The types of injury are presented and the use of different types of mouthguard is discussed. Among 120,086 procedures involving anaesthesia carried out in the period 1983-1992 at Bispebjerg Hospital, Copenhagen, 75 cases of dental trauma occurred. The incidence of dental traumatic injuries was 0.06%. Although eight patients had used mouthguards they were registered with traumatic injuries to the teeth in connection with general anaesthesia. Of the patients, 58% were women and 42% men, with a mean age of 61 years. Seventy-eight percent of the injuries were located in the maxilla and 91% of these involved the incisor area of the maxilla. Forty-one percent were classified as lateral luxations or mobile teeth, 47% were classified as fractured teeth, 10% tooth avulsions and the remaining 2% were classified as concussions. Because of the low frequency of traumatic dental injuries in connection with general anaesthesia and the non-significant effect of the use of mouthguards, routine use of mouthguards is not recommended. Only when a patient is to have an endoscopy done under general anaesthesia, and the surgeon or anaesthesiologist foresees problems (restricted mouth opening, extensive fixed prosthetics, extensive loss of marginal bone) is use of an individually made mouthguard indicated.

Adult↗
PubMed2002

Mandibular advancement devices: rate of contraindications in 100 consecutive obstructive sleep apnea patients.

Mandibular advancement devices (MAD) should be contraindicated (Clark GT, Sleep Med Rev 1998;2:163-174) if there are: (1) insufficient teeth to support the device, (2) periodontal problems inducing tooth mobility, (3) active temporomandibular joint (TMJ) disorder, and (4) limited maximum protrusive distance (< 6 mm). The aim of the present study was to evaluate the proportion of the obstructive sleep apnea population that exhibits any contraindication (CI) to MAD. For this study there were 100 unselected adult patients consecutively diagnosed by polysomnography in a tertiary sleep laboratory. Clinical and radiologic evaluation of the dental, periodontal, and TMJ status of these 100 patients were performed by two expert maxillofacial surgeons, blind to each other, permitting the identification of MAD CIs. The two maxillofacial surgeons agreed on MAD absolute CIs in 96 of the 100 patients. CIs were identified in 34% of the patients. The nature of the CIs systematically referred to an insufficient number of remaining teeth (mean number of teeth lost: 7.8 +/- 6.1 with 31 patients having had more than 10 teeth removed). The tooth avulsions were significantly higher in contraindicated compared with noncontraindicated patients (16 +/- 8 versus 4 +/- 3, p < 0.00001). Periodontal abnormalities coexisted with dental CI in approximately half of the patients. A TMJ disorder was considered as significant enough to lead to CI in two patients. Dental and periodontal care was needed in 16 patients before the use of MAD could be considered. Conclusions were that primary CIs were present in 34% of 100 consecutive patients, mainly owing to dental problems. Moreover, another subgroup of patients (16%) required close supervision and follow-up to avoid impairment of preexisting TMJ and dental problems. Such a high rate of CI should be considered when the overall efficacy of oral appliances is compared with other treatments, such as surgery or nasal continuous positive airway pressure.

Adult↗
PubMedDate not supplied

Traumatically injured primary incisors: a clinical and histological study.

World-wide epidemiological studies state that from 8 percent to 30 percent of children up to 7 years of age sustain injury to primary incisors, including crown fracture, root fracture, tooth avulsion, and dental displacement, which result in malformation of permanent incisors depending upon their state of development. In this study, traumatized primary incisors were evaluated clinically and radiographically, with the following data recorded: exact or approximate time-interval of traumatic episode(s) and extraction, mobility, color change, sensitivity to percussion/palpation, swelling, sinus tract, caries, crown/root fracture, periodontal/periapical lesions, external/internal root resorption, mineralization, and obturation. Based upon the local damage and developmental age, 138 teeth were extracted, fixed in 10 percent formalin, and processed for histological evaluation according to routine methodology. Histologic findings were: the presence of varying extent of necrosis, bacteria in the area of necrosis--not in all cases--neutrophilic leukocytes, chronic inflammatory cells, pulpal calcifications, resorption/apposition, and circulatory changes. The blood pigment distinguished hemorrhage due to extraction from pathologic circulatory changes. All the described reactions varied in intensity and extent with the time interval and the assumed force of the original trauma. Physical trauma to primary teeth caused pulpal damage, which could involve periapical tissue, depending on the extent of the initial damage.

Child↗