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Results 351 - 400 of 678
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Otsuka Y - - 2001
AIM: The aim of this study was to review clinical findings in 14 impacted primary teeth in 13 cases treated at a Paediatric Dental Clinic over a period of 18 years. METHOD: The retrospective study used clinical records, radiographs and oral photographs. Data included age, gender, presenting complaints, location, radiographic ...
Rao P V - - 2001
A review of the literature on supernumerary teeth in general and supernumerary molars in particular was carried out on prevalence, aetiology, complications and the treatment of supernumerary teeth. Additional teeth are relatively common and are usually of simple conical shape (supernumerary teeth) but may resemble teeth of the normal size ...
Hodges S J - - 2000
Two cases are described of indelible enamel staining following fixed appliance therapy. The acquired pigmentation occurred in patients with an identifiable enamel defect prior to treatment. The interaction of factors to cause the staining is discussed and it's prevention in future cases highlighted. Subsequent restoration of the affected teeth is ...
Fujiwara T - - 2000
Odontodysplasia is an uncommon clinicopathological condition with a variety of expressions. Although it is generally recognized as a localized disorder of dental tissue, its aetiology has not yet been well explained. In the present case, odontodysplasia with oligodontia in the permanent dentition is reported. The patient was in good health ...
Gibson N - - 2000
This paper presents a case of a patient who developed a mandibular premolar supernumerary tooth between the age of 11 and 20 years. Evidence for the late development of the supernumerary tooth comes from consecutive panoramic radiographs. A review of the international literature concerning late developing supernumerary teeth is included.
Northway W M - - 2000
BACKGROUND: Premature loss of primary molars has been associated with space loss and eruptive difficulties, especially when the loss occurs to the primary second molars and when it occurs early. This has not been thought to be the case for primary first molars. METHODS: The author revisited 13 cases from ...
Kjaer I - - 2000
The purpose of the present study was to elucidate the relationship between fusions in the primary dentition and the occurrence of agenesis in the succedaneous permanent dentition in a Danish child population and to elucidate this relationship from the recently described normal embryological development of the anterior parts of the ...
Prusack N - - 2000
Segmental odontomaxillary dysplasia (SOD) is a rare, unilateral developmental disorder of the maxilla involving abnormal growth and maturation of the bone, lack of one or both premolars, altered primary molar structure, delayed tooth eruption, and fibrous hyperplasia of the gingiva. In this, the twenty-third reported case of SOD, the literature ...
Halfpenny W - - 2000
Myxoma of the mandibular condyle is extremely rare and may cause signs and symptoms like those seen in patients with temporomandibular joint dysfunction (TMD). The histogenesis, histologic profile, and management of myxoma of the jaws remain controversial. We report a case of myxoma involving the mandibular condyle appearing as TMD, ...
Maia F A - - 2000
Tooth transposition presents a major challenge in the correction of a malocclusion. A dental transposition is an uncommon disturbance affecting 0.4% of the population, yet the treatment difficulties make this anomaly an occurrence of orthodontic interest and a source of clinical interest. This case report shows the unilateral transposition of ...
Izadi K - - 2000
Chondrosarcomas of the maxillofacial region are extremely rare tumors, accounting for approximately 1% of chondrosarcomas of the entire body. This case represents the 12th case of mandibular symphyseal chondrosarcoma reported in the literature. It presented as a painful swelling of the alveolus, associated with a mobile mandibular incisor. The patient ...
Walid N - - 2000
The complex configuration of C-shaped canals in mandibular second molars make root canal treatment unusually difficult. The present case highlights their unpredictable canal anatomy and describes the use of two pluggers simultaneously to downpack the main canals. The effect of such a modification on the high-flow characteristics of thermosoftened gutta-percha ...
Tatakis D N - - 2000
This clinicopathologic case report documents severe gingival recession in the primary dentition of a trisomy 18 patient. Primary molar and canine teeth exhibited recession extending beyond the midpoint of the buccal aspect of the root, occasionally reaching the root apex. Radiographic examination revealed taurodontism in both primary and permanent teeth. ...
Kokich V O VO - - 2000
Occasionally orthodontists must plan treatment for a patient with extensive caries or a traumatic injury to one mandibular incisor. If the patient has a Bolton discrepancy, one treatment option could involve extraction of the affected mandibular incisor. However, if the patient does not have a Bolton discrepancy and a mandibular ...
Dibiase A T - - 2000
Primary failure of eruption is a condition where there is eruption failure in the permanent dentition with no obvious mechanical cause. It has previously been reported in the literature as a cause of posterior openbite, with a varying degree of familial inheritance. This case report describes two sisters that experienced ...
Di Domizio P - - 2000
A case of multiple idiopathic apical root resorption in a 26-yr-old female patient is presented. A review of the literature revealed that extensive idiopathic root resorption is unusual. Neither local nor systemic etiological factors were found in our case. Examination of parents and siblings did not reveal a familiar tendency. ...
Rupp R P - - 2000
This review of the literature considers the role of the mandibular third molars in orthodontic relapse. Theories attempting to resolve the mystery of relapse following orthodontic treatment are presented. While the literature supports the conclusion that there are valid reasons to remove third molars, it does not greatly support prophylactic ...
Whitworth J M - - 2000
A case is described where substantial reduction of an established periapical lesion appeared to take place in the absence of operative intervention, and as the crown of the tooth was progressively destroyed by dental caries. The case raises debate on the pathogenesis, diagnosis and monitoring of endodontic lesions, and may ...
Güngör H C - - 2000
Talon cusp is a tooth anomaly that affects both the primary and the permanent dentitions. However, the occurrence of this anomalous cusp is rather infrequent in the primary dentition. Only 7 cases of bilateral talon cusps affecting the primary teeth have been reported in the dental literature. This is a ...
Lopes M A - - 2000
Dental anomalies are an important issue and dentists should be able to manage these conditions. Often, treatment is not necessary; however, some abnormalities may affect the esthetics or function of teeth and can lead to other problems. This case report presents an unusual case of alteration in shape affecting the ...
Ohno K - - 2000
A five-year-old Japanese girl was referred to our clinic for non-eruption of the teeth. Panoramic radiographs revealed absence of all teeth of both primary and permanent dentitions. She showed hypotricosis, hypohidrosis, and anodontia. In this article, the reported cases of anodontia were reviewed and the fabricating procedure of full dentures ...
Warren J J - - 2000
OBJECTIVES: Decisions to extract a tooth may be among the most critical in dentistry. The aim of this study was to prospectively investigate both clinical and nonclinical factors related to decisions to extract or retain teeth in private general dental practice. METHODS: A convenience sample of 196 Iowa dentists in ...
Costa F - - 2000
Inferior repositioning of the maxilla to correct vertical maxillary deficiency has been one of the more unstable orthognathic procedures performed. This kind of maxillary movement is the logical correction of short face syndrome due to maxillary vertical deficiency, but in spite of the esthetic improvement that it produces, a great ...
Kenny D J - - 2000
The enamel matrix derivative Emdogain was recently approved for clinical use in a number of countries, including Canada. It has been shown to stimulate regeneration of periodontal ligament following periodontal surgery in adults. This paper reviews pertinent clinical and laboratory studies of Emdogain and describes the protocol and methods used ...
Welbury R - - 1999
Two cases of trauma to immature teeth are described which differed significantly in their initial severity. However, both subsequently presented with continued apical root formation. In the two cases a histological examination after tooth removal confirmed continued apical development of the traumatised immature teeth distant to their respective coronal portions. ...
Leong P - - 1999
Exclusive aplasia of maxillary permanent canines is extremely rare. There are only a few cases of this condition reported in the literature. This paper reports a case of bilateral congenitally missing canines in a healthy 11 year old male of Chinese origin. The article discusses problems in diagnosis and presents ...
Betts A - - 1999
OBJECTIVES: To study the prevalence of aetiological factors associated with unerupted maxillary incisors and to follow the outcome of treatment in a study of 47 cases. DESIGN: A retrospective study. SETTING: The Dental Department, St Luke's Hospital, Malta, the School Dental Clinic of Malta and the private practices of two ...
Finucane D - - 1999
This study examines the treatment of non-vital immature permanent incisors using the calcium hydroxide apexification technique. The objectives of the present study were to determine the speed and location of barrier formation and those factors discernible at presentation and during treatment which may be related to it. Forty-four non-vital immature ...
Mochizuki K - - 1999
Surgical management of unerupted teeth depends upon a thorough understanding of anatomic, physiologic and pathologic factors. Attention has been given to problems of eruption in the maxillary anterior region. It is a region where a variety of anomalies occur. Since the maxillary anterior region influences appearance so greatly, early detection ...
Aqrabawi J - - 1999
Intentional replantation has been practised for many years as a treatment modality for pulpless teeth. Although the success ratio for intentional replantation is far below that for routine or surgical endodontics, one should consider this procedure as an alternative to tooth extraction. Two cases of mandibular second molars which were ...
Mussa R - - 1999
The case of a 61-year-old woman with a primary diagnosis of spondyloepiphyseal dysplasia and severe maxillary and mandibular spacing as well as anterior and posterior crossbites is presented. Clinical findings led to a diagnosis of macroglossia which required partial glossectomy in addition to comprehensive orthodontic treatment to correct malocclusion.
Bacon W - - 1999
The case of GAPO syndrome reported here is the 24th recorded case, 23 cases having been published previously. The 29-year-old male under discussion presents all the typical features of the syndrome, having short stature, dysmorphic craniofacial features, total alopecia and pseudoanodontia. Orally, the erupted primary dentition was extremely worn and ...
Turbill E A - - 1999
AIM: To elucidate factors that influence choice of appliance type in General Dental Service (GDS) orthodontics in England and Wales. METHOD: Records were obtained for 1527 cases, representing a systematic 2 per cent sample of GDS cases completed during 1990-91. Evaluation involved Discriminant Analysis to find the most influential factors ...
Bohsali K - - 1999
One of the primary causes of endodontic failure is the presence of untreated canals. Although the maxillary first molar has been described as the most endodontically treated tooth, the canal configuration has been the least understood. The purpose of this article is to present, with the aid of several clinical ...
Alexander-Abt J - - 1999
The case of a 12-year-old girl is reported, whose pretreatment radiograph demonstrated agenesis of two premolars and a canine and slow development of the contralateral premolars. A follow-up radiograph taken 1 year later showed initial mineralization of a tooth germ in the site of one of the apparently missing premolars. ...
Pertl C - - 1999
This report describes the treatment sequence after traumatic loss of a maxillary central incisor in a 15-year-old patient. Following extraoral root canal treatment and initially successful replantation, the case presented 9 years later with complete root resorption. After augmentation with an autologous mandibular corticocancellous graft, a dental implant was placed ...
Alessandri Bonetti G - - 1999
BACKGROUND: The authors present an interdisciplinary approach to treating bilateral impaction of mandibular second molars. CASE DESCRIPTION: A 22-year-old man had a bilateral deep horizontal impaction of his mandibular second molars. The mandibular third molars lay above and parallel to the second molars. After an orthodontic assessment, the authors decided ...
Timms D J - - 1999
The first report of lateral maxillary expansion by separation of the maxilla, written by Angell and published in 1860, was discredited. Applying our present-day knowledge of the technique to the original documents indicates that the case history agrees in general with current observations. The arguments mounted against Angell, especially by ...
Reddy N N - - 1999
Six cases of asymptomatic dental twinning anomalies in the primary dentition are reported in 4205 school children. A clinical and radiographic presentation of the cases of fusion of primary incisor teeth is illustrated. This clinical entity has been found to appear with varied clinical and radiographic appearances. An association of ...
Yeh S C - - 1999
Nonsurgical treatment of 3 maxillary lateral incisors with dens invaginatus is reported. Invaginated teeth present technical difficulties with respect to their management because of complicated canal morphology. In the first case reported, apical abscess with incomplete root formation was found at the time of examination. Calcium hydroxide apexification provided favorable ...
Borsatto M C - - 1999
This report is a clinical case of a 7-year-old child who presented right impacted second primary mandibular molar. This tooth was positioned inferior to the second premolar successor and a supernumerary tooth superior to the second premolar. Clinical examination did not reveal systemic diseases ot trauma in the facial region. ...
al-Omari M A - - 1999
Talon cusp is an uncommon dental anomaly manifested as an accessory cusp-like structure on the crown of anterior teeth. This report describes two unusual cases of talon cusp. Case 1 showed bilateral anomalous cusps on the palatal aspects of maxillary supernumerary teeth, causing premature contact and tooth impaction. In case ...
Turell I L - - 1999
Developmental anomalies in permanent molars frequently require surgical intervention. A case of a mandibular third molar fused with a fourth molar which was successfully treated with conservative endodontic therapy is reported.
Stockton L W - - 1999
STATEMENT OF PROBLEM: An extensive review of the published literature has revealed a wide divergence of opinion regarding the suitability of different post systems for endodontically treated teeth. As a result, the dentist has no clear guidelines concerning the selection of suitable post systems that will provide adequate retention while ...
Lee R T - - 1999
A study of the literature reveals a variety of opinions on the potential for change in arch dimensions. The variations in sample sizes, treatment mechanics, and retention regimens may obscure relevant findings. These articles confirm some common findings, and a number of clinical cases are presented to illustrate these trends. ...
Prabhu N T - - 1999
A rare case of a patient with aberrant root morphology in all the mandibular premolars is reported. A thorough review of the dental literature revealed little significant data concerning such cases, because much of the literature is concerned with variation in root canal morphology rather than variations in root morphology. ...
Gleghorn T - - 1999
Often, the aesthetic dentist will place veneers to nonorthodontically reposition teeth. While this is a valid and beneficial treatment for many patients, the outcome is still compromised by improper tooth alignment. It is a pleasure to complete an interdisciplinary case where the tooth and arch alignment are ideally positioned. Restorative ...
Fukumoto S - - 1999
Congenital absence of one or more teeth, hypodontia, is the most common developmental anomaly and is often accompanied by the presence of other tooth anomalies. In this case two Japanese sisters have several congenitally missing primary and permanent teeth and morphological abnormalities of maxillary first molars. One sister has transposition ...
Oncag O - - 1999
A ten-year-old boy, who had the typical dental findings of dysosteosclerosis such as yellowish, hypoplastic teeth, retarded eruption, which upon eruption, decayed rapidly, is presented. To date this is the first known case reported with a congenital absence of the first permanent molars. Furthermore, SEM evaluation of the enamel and ...
Jumlongras D - - 1999
This case report demonstrates the treatment of a Class III malocclusion, in a twelve-year-old girl, using a unique combination of a removable functional appliance, the "four-way sagittal" appliance and fixed appliance therapy. Efficient and effective correction of malocclusion was attained, following use of the "four-way sagittal" appliance. This appliance was ...
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