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Biomedical subjects

R F Cunha

Publications and source records attributed to R F Cunha.

15 recordsLinked to original sources
PubMed2003

Conservative treatment of a radicular cyst in a 5-year-old child: a case report.

The present report describes the management of a radicular cyst in a 5-year-old child. The treatment comprised extraction of the primary teeth involved followed by marsupialization. A removable appliance with a resin extension penetrating into the cystic cavity was used to help decompress the lesion. This treatment allowed rapid healing of the lesion and eruption of the permanent incisors without the need for orthodontic treatment.

Child, Preschool↗
PubMed2002

Influence of surgical repositioning of mature permanent dog teeth following experimental intrusion: a histologic assessment.

The aim of this study was to evaluate, through histologic examination, the effect of surgical repositioning of intruded dog teeth upon the pulpal and surrounding tissues. Thirty teeth in 10 adult dogs, aged 2-3 years, were used. Fifteen teeth were intruded, surgically repositioned and fixed using orthodontics wire, composite resin, and enamel acid conditioning. All these teeth served as the experimental group. The remaining intruded teeth were not treated (control group). The animals were sacrificed to allow observations at 7, 15, and 30 post-operative days. The maxillary and mandibular arches were removed and processed for histologic exam. Based on the methodology and observed results, we concluded that: pulpal necrosis, external root resorption and ankylosis were common sequelae to severe traumatic intrusion; a careful immediate surgical repositioning of severed intruded permanent tooth with complete root formation has many advantages with few disadvantages.

Animals↗
PubMed2001

Oral trauma in Brazilian patients aged 0-3 years.

The aim of the present investigation was to gather data pertaining to dental trauma in 1654 patients aged 0-3 years, attended at the Baby Clinic of the School of Dentistry at Araçatuba-UNESP, Brazil. The prevalence of traumatic injuries was 16.3%. There was greater involvement of boys (62.6%), of children aged 1-2 years (39.9%) and of the maxillary central incisors (86%). Falls were more often the etiology for dental injuries (58.3%). There was a predominance of uncomplicated crown fractures (48.4%).

Accidental Falls↗
PubMed2001

Early treatment of an intruded primary tooth: a case report.

The report is about a case of total intrusion of a deciduous central incisor involving a male patient of 14 months of age. Repositioning of the intruded tooth was performed 20 minutes after the trauma, followed by placement with sutures. Clinical and radiographic monitoring performed after 1, 2, 4, 9, and 13 months showed normal characteristics. We emphasize the development of preventive programs promoting parental awareness of the importance of looking for prompt care, resulting in a better prognosis.

Follow-Up Studies↗
PubMed2000

A thirty months clinical evaluation of a posterior composite resin in primary molars.

The purpose of this in vivo study was to evaluate the clinical performance of a posterior composite resin TP.H (Caulk Dentisply) in class I restorations in primary molars. A total of 30 children aged 5 to 8 years old with 49 class I dental lesions in primary molars participated in the study. The cavity preparations involved removal of carious lesion only and the enamel margins were beveled. The results showed after 30 months that, 82% (32/39) of Alfa ratings and 18% (7/39) of Bravo ratings. We concluded that the composite resin TP-H could be used in conservative restorations in primary molars, particularly in the late mixed dentition.

Child↗
PubMed1995

Pulpal and periodontal reactions of immature permanent teeth in the dog to intrusive trauma.

Pulpal and periodontal tissues of immature incisors of 10 dogs were radiographically and histopathologically evaluated immediately, 7, 15, 30 and 60 days after experimental intrusion induced by mechanical blows. Forty upper central and mesial lateral incisors showing incomplete root formation on radiographs were submitted to intrusive force. After the observation periods, the dogs were killed, two at a time. The hemi-maxilas were removed and processed for histopathologic examination. The traumatized teeth showed accelerated apical formation with reduced radicular length. Pulpal vitality was maintained and the subjacent tissues did not present irreversible changes. All traumatized teeth re-erupted spontaneously.

Animals↗
PubMed1995

Penetration of a light-cured glass ionomer and a resin sealant into occlusal fissures and etched enamel.

PURPOSE: To evaluate the penetration of a light-cured glass ionomer and a resin sealant into occlusal fissures and etched enamel. MATERIALS AND METHODS: Forty-eight maxillary and mandibular caries-free premolars scheduled for extraction for orthodontic reasons were isolated, the occlusal surfaces subjected to prophylaxis and acid-etched with orthophosphoric acid prior to the application of the VariGlass VLC glass ionomer and Concise resin sealants. The teeth were extracted, two longitudinal median sectiors from each tooth were ground to a thickness of 80-100 microns, and the sealant penetration into the fissures evaluated. The sections were placed in nitric acid to dissolve the enamel so the lengths of the tags which had penetrated into the etched enamel could be measured at different sites on the walls of the fissures. RESULTS: Both sealants adapted well to the fissures but penetrated deeper into shallow, open fissures than into deep, constricted fissures. The VariGlass VLC tags into etched enamel were generally longer than the Concise projections.

Acrylic Resins↗
PubMed1993

The oral blue nevus in children: a case report.

The intraoral blue nevus is a benign, relatively rare lesion that usually occurs in adults and most often in women. The reported case is interesting because the patient was only 11 years old. The lesion, located in the hard palate, was surgically removed. The specimen was sent for histologic examination, resulting in the final diagnosis of common blue nevus.

Child↗
PubMedDate not supplied

Treatment of posterior crossbite in mixed dentition with a removable appliance: reports of cases.

A posterior crossbite malocclusion is defined as an abnormal buccolingual relationship. One or more maxillary teeth improperly occludes with one or more mandibular teeth in centric relation. This alteration develops early and is seldom self-correcting. This study is a report of the benefits of treating posterior cross-bite malocclusions in mixed dentitions using removable appliances.

Bicuspid↗
PubMedDate not supplied

Treatment of mucus retention phenomena in children by the micro-marsupialization technique: case reports.

The purpose of the present study was to emphasize the technique of micro-marsupialization as an alternative for the treatment of mucus retention phenomena. Out of 41 patients, 14 were selected for treatment by the micro-marsupialization technique on the basis of clinical criteria. Patient age ranged from 5-9 years. The technique was performed as follows: the area was disinfected with 0.1% iodine; a topical anesthetic was applied to cover the entire lesion for approximately 3 min; a 4.0 silk suture was passed through the internal part of the lesion along its widest diameter; and a surgical knot was made. Of the original 14 patients treated by the micro-marsupialization technique, 12 presented full regression one week after treatment. Recurrence occurred in two cases. It was possible to conclude that the micro-marsupialization technique is an alternative to be considered, especially in pediatric dentistry.

Child↗
PubMedDate not supplied

Dentistry for babies: a preventive protocol.

The objectives of this program were to educate the parents in the importance of preventive care and to establish protocols for oral health treatment and maintenance that reflected the oral disease risk of the infant. Since its inception, more than 1,000 infants have been enrolled in the program and compliance has been excellent.

Cariostatic Agents↗
PubMedDate not supplied

Natal and neonatal teeth: review of the literature.

Child development from conception through the first years of life is marked by many changes. Tooth eruption follows a chronology corresponding to the date when the tooth erupts into the oral cavity. These dates have been established in the literature and are subjected to small variations depending on hereditary, endocrine and environmental features. At times, however, the chronology of tooth eruption suffers a more significant alteration in terms of onset, and the first teeth may be present at birth or arise during the first month of life. The expectations about the eruption of the first teeth are great and even greater when the teeth appear early in the oral cavity. The objective of the present study was to present a review of the literature with important aspects about natal and neonatal teeth.

Diagnosis, Differential↗
PubMedDate not supplied

Eosinophilic granuloma: report of case.

This paper related a case of eosinophilic granuloma in an eleven-year-old male child, treated successfully with curettage. The lesion appeared as a single irregular nodule in the left mandibular alveolar crest. A radiolucency was observed in the radiograph apparently causing an expansion of the vestibular and lingual cortical plates and displacement of the germs of the canine and first premolar. The treatment was by curettage, retaining the germs of the teeth involved. Other parts of the body were examined by osteal scintillography. Clinical and radiographic observations were done in the first three months; one year; two years; and five years postoperative with excellent prognosis.

Alveolar Process↗