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1.
BMC Oral Health ; 24(1): 354, 2024 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-38504243

RESUMO

BACKGROUND: Pulpotomy as a minimally invasive pulp therapy technique is the treatment of choice for carious pulp exposures, however many pediatric dentists perform pulpectomies in vital primary incisors. The aim of this split mouth randomized controlled study was to compare formocresol pulpotomy and zinc-oxide and eugenol pulpectomy in the treatment of vital pulp exposure in primary incisors. METHODS: Contralateral pairs of incisors were randomly assigned to receive pulpotomy or pulpectomy in children aging from 18 to 66 months old and were followed up for 12 months. RESULTS: 39 pairs of incisors were included. Clinical and radiographical success rates showed no statistical significant difference (p = 1, p = 0.8 respectively). Relative risk measures for clinical success rates (RR = 1.03, 95%CI 0.87 to 1.23) and for radiographic success rates (RR = 1.03, 95%CI 0.83 to 1.29) with CIs including number one showing no difference between the two groups. The Survival rate using Kaplan-Meier survival analysis score showed 82% for pulpotomy and 74% for pulpectomy at 12 months (P = 0.2). CONCLUSIONS: Both pulpotomy and pulpectomy techniques can be used successfully in the treatment of carious vital pulp exposure in primary incisors. TRIAL REGISTRATION: The trial was retrospectively registered in Clinicaltrials .gov with this identifier NCT05589025 on 21/10/2022.


Assuntos
Agentes de Capeamento da Polpa Dentária e Pulpectomia , Óxido de Zinco , Criança , Humanos , Lactente , Pré-Escolar , Pulpotomia/métodos , Pulpectomia/métodos , Incisivo/cirurgia , Agentes de Capeamento da Polpa Dentária e Pulpectomia/uso terapêutico , Dente Decíduo , Silicatos/uso terapêutico , Resultado do Tratamento , Compostos de Cálcio/uso terapêutico
2.
Sleep Breath ; 27(5): 2059-2067, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-36862328

RESUMO

PURPOSE: Mandibular advancement devices (MADs) effectively treat patients with obstructive sleep apnea (OSA). Although the use of morning occlusal guides (MOGs) along with MADs is recommended to prevent dental side effects, there is no evidence to support this. The aim of this study was to evaluate the change in incisor inclination in patients with OSA treated with MADs and MOGs, and to identify its predictive factors. METHODS: Patients with OSA who received MAD and MOG therapy and had a reduction in their apnea-hypopnea index greater than 50% were analyzed. Cephalometric measurements were performed at baseline and at a 1-year follow-up or longer to assess the dentoskeletal side effects of MAD/MOG treatment. Multivariable linear regression analysis was used to assess the association between the change in incisor inclination and the independent variables that may cause the observed side effects. RESULTS: Among 23 patients enrolled in the study, there was significant upper incisor retroclination (U1-SN: 2.83° ± 2.68°, U1-PP: 2.86° ± 2.46°; P < 0.05) and significant lower incisor proclination (L1-SN: 3.04° ± 3.29°, L1-MP: 1.74° ± 3.13°; P < 0.05). However, no significant skeletal changes were observed. Multivariable linear regression revealed that advancement ≥ 95% of the patients' maximal mandibular protrusion was associated with greater upper incisor retroclination. Increased treatment duration was also associated with increased upper incisor retroclination. No \measured variables were associated with the change in lower incisor inclination. CONCLUSIONS: Dental side effects occurred in patients who used MADs with MOGs. The amount of mandibular protrusion by MADs and treatment duration were predictive factors associated with upper incisor retroclination.


Assuntos
Avanço Mandibular , Apneia Obstrutiva do Sono , Humanos , Incisivo , Placas Oclusais , Apneia Obstrutiva do Sono/terapia , Apneia Obstrutiva do Sono/etiologia , Duração da Terapia , Resultado do Tratamento
3.
Am J Orthod Dentofacial Orthop ; 164(6): 793-804, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37498253

RESUMO

INTRODUCTION: This study compared treatment efficacy for specific tooth movements between 2 clear aligner systems (Clarity [3M Oral Care Solutions, St Paul, Minn] and Invisalign [Align Technology, San Jose, Calif]). METHODS: The study sample included 47 patients (7 males, 40 females; mean age, 36.57 ± 15.97 years) treated with Invisalign and 37 (4 males, 33 females; mean age, 34.30 ± 16.35 years) treated with Clarity aligners who completed their first set of aligners and had an initial refinement scan. Initial and predicted models were obtained from the initial simulated treatment plan. The first model of the refinement scan was labeled as achieved. SlicerCMF software (version 3.1; http://www.slicer.org) was used to superimpose the achieved and predicted digital models over the initial ones with regional superimposition on the relatively stable first molars. Nine hundred forty teeth in the Invisalign system were measured for horizontal, vertical, and angular movements and transverse width and compared with similar measurements of 740 teeth for the Clarity aligners. The deviation from the predicted was calculated and compared between both systems. RESULTS: The deviation achieved from the predicted was significant between the groups for the mandibular interpremolar and intercanine widths (P <0.05). Clarity aligners significantly undercorrected rotations compared with Invisalign for the mandibular first premolars, mandibular canines, maxillary canines, and maxillary central incisors. There was no statistically significant difference between the groups for the achieved vs predicted movements in the horizontal and vertical planes (P >0.05). CONCLUSIONS: The efficacy of clear aligner therapy systems (Clarity and Invisalign) in treating mild and moderate malocclusions was comparable. Deviation of the achieved movements from the predicted was greatest for rotational and vertical movements.


Assuntos
Má Oclusão , Aparelhos Ortodônticos Removíveis , Masculino , Feminino , Humanos , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Adolescente , Má Oclusão/terapia , Software , Resultado do Tratamento , Incisivo , Técnicas de Movimentação Dentária
4.
J Oral Implantol ; 49(3): 303-310, 2023 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-36796065

RESUMO

Achieving favorable and stable esthetic outcomes with immediate implants used to replace maxillary anterior teeth can be challenging. Osteotomies need to be initiated along the palatal socket wall, and it is often difficult to stabilize initial drilling. An immediate implant was planned for a hopeless maxillary incisor. Using a flapless surgery technique, the tooth was removed and decoronated, and an entry point was made in the root to guide the osteotomy drills. The root was reinserted and stabilized while a precision drill and 2-mm twist drill were used in sequence to drill through the tooth root, establishing the osteotomy location but stopping 3-4 mm short of final depth. The root was then removed, and the final implant bur for a 3.5 × 11.5-mm implant was drilled to depth, engaging the necessary native bone apically. The original tooth crown was then used to prepare and insert a transitional crown. Reinserting the extracted root of a maxillary anterior tooth and using it as a guide for osteotomy preparation is an excellent method to optimally position an immediate implant palatally in the socket wall.


Assuntos
Implantes Dentários para Um Único Dente , Carga Imediata em Implante Dentário , Humanos , Carga Imediata em Implante Dentário/métodos , Estética Dentária , Implantação Dentária Endóssea/métodos , Incisivo/cirurgia , Coroas , Maxila/cirurgia , Resultado do Tratamento
5.
BMC Oral Health ; 23(1): 468, 2023 07 08.
Artigo em Inglês | MEDLINE | ID: mdl-37422648

RESUMO

BACKGROUND: Clinicians agree that obtaining and retaining good treatment results for missing maxillary central incisors owing to trauma is not easy. Management of adult patients with permanent maxillary central incisor loss who visit the clinic with high expectations for aesthetics and function pose a significant diagnostic dilemma. Therefore, esthetic and functional outcomes should be taken into consideration when deciding the proper treatment method. The treatment described in this study aimed to reestablish smile esthetics by proposing an effective multidisciplinary clinical approach that includes orthodontic-prosthetic-periodontal procedures, optimally reduced lip protrusion, center dental midlines, and establishment of stable occlusion. CASE PRESENTATION: The patient was a 19-year-old adult female with bimaxillary arch protrusion who had been wearing removable dentures for several years since the loss of her maxillary central permanent incisors. A multidisciplinary treatment including the extraction of two mandibular primary premolars was adopted. The treatment plan consisted of orthodontic space closure by shifting the adjacent teeth towards the central incisor spaces combined with appropriate morphologic remodeling and gingival reshaping to obtain good aesthetic and functional results. The duration to complete the orthodontic treatment was 35 months. Clinical and radiographic results after treatment suggested smile harmony with an improvement in the facial profile, good function of the occlusion, and a positive effect on bone remodeling in the area of the missing incisors during orthodontic tooth movement. CONCLUSIONS: This clinical case illustrated the necessity for using multidisciplinary methods involving orthodontic, prosthodontic, and periodontic procedures to treat an adult female patient with bimaxillary arch protrusion and long-term absence of anterior teeth due to severe trauma.


Assuntos
Incisivo , Má Oclusão , Humanos , Adulto , Feminino , Adulto Jovem , Má Oclusão/etiologia , Má Oclusão/terapia , Técnicas de Movimentação Dentária/métodos , Gengiva , Resultado do Tratamento , Maxila
6.
Clin Oral Investig ; 26(12): 6973-6983, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35906341

RESUMO

OBJECTIVES: The aim of this study is to analyze the esthetic perception of selected canine features, namely crown length, shade, inclination, and angle of incisal edge tip. MATERIALS AND METHODS: The anterior maxillary teeth of a Central European woman were photographed and digitally modified in order to investigate esthetic perceptions of the above four categories. Three groups of examiners with different levels of experience in the field of dentistry (laypersons/inexperienced dental students, advanced dental students, dentists) evaluated the photographs twice with the help of visual analogue scales. RESULTS: The best-evaluated canines have approximately the same length as the central incisor, have the same shade as the other anterior teeth, are best embedded in a lighter overall tooth shade, are neutral to slightly palatal inclined, and have a right angled to rounded incisal edge (≥ 90°). The canines evaluated as least esthetic, however, are longer than the central incisors, darker, inclined labially, and have a tapered incisal edge. No significant differences could be found between the evaluations of the groups with regard to the four feature categories. CONCLUSIONS: Laypersons, advanced dental students, and dentists generally evaluate according to the same esthetic standards. Gender does not have a significant influence on evaluation. Clear definitions of esthetically favored shades, incisal edge shapes, inclination, and lengths of the canines can be given. CLINICAL RELEVANCE: Since the esthetics of the smile line play a critical role for patients, dentists, dental technicians, and their supplying industry, knowledge of the esthetically preferred morphology of canines is essential. CLINICAL SIGNIFICANCE: The aim of this study is to give clear definitions of esthetically favored shades, incisal edge shapes, and lengths of the canines, as the esthetics of the smile line play a critical role for patients, dentists, dental technicians, and their supplying industry (e.g., denture tooth manufacturers). Precise knowledge of esthetic preferences is important in clinical practice for both dentists and dental technicians, for example, in order to adequately advise patients regarding esthetic corrections. Also, in the case of missing teeth, this knowledge is essential for optimal and satisfactory restorations. Thus, this study can contribute to the satisfaction of general practitioners and patients.


Assuntos
Estética Dentária , Incisivo , Humanos , Incisivo/anatomia & histologia , Odontólogos , Maxila/anatomia & histologia , Percepção
7.
Odontology ; 110(4): 719-725, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35523910

RESUMO

The aim was to investigate the vertical root fracture (VRF) resistance and crack formation of root canal-treated teeth restored with different post-luting systems. Human maxillary lateral incisors of similar size were decoronated, assigned to five groups (n = 18, power = 0.9) and embedded in acrylic blocks with artificial periodontal ligament. After root canal filling, post spaces were prepared to place coated fiber-reinforced composite (FRC) or sandblasted titanium (Ti) posts of the same shape and size. Half of the posts were zinc phosphate cemented (C), while the other half was adhesively luted (A). Untreated teeth served as control. After thermal cycling and staircase loading in a chewing simulator, the crack formation on the root dentin surface was microscopically examined and classified as no defect, craze line, vertical crack, and horizontal crack. Subsequently, the samples were loaded until root fracture. Data were analyzed by one-way ANOVA, Tukey's test, and Fisher's exact test. All samples survived the chewing simulation without VRF, but crack formation was significantly different between the groups (P = 0.009). The control showed significantly fewer defects than FRC/C, Ti/C, and Ti/A (P = 0.001, P = 0.008, P = 0.008, respectively). FRC/C showed the highest incidence of vertical cracks. FRC/A had the lowest incidence of defects. There was no significant difference in VRF resistance between the groups (P = 0.265). Adhesively luted FRC posts did not increase VRF resistance but reduced the risk of defects. Most defects were craze lines and vertical root cracks.


Assuntos
Técnica para Retentor Intrarradicular , Fraturas dos Dentes , Resinas Compostas , Cavidade Pulpar , Análise do Estresse Dentário , Humanos , Incisivo , Tratamento do Canal Radicular , Fraturas dos Dentes/prevenção & controle
8.
BMC Oral Health ; 22(1): 275, 2022 07 05.
Artigo em Inglês | MEDLINE | ID: mdl-35790955

RESUMO

BACKGROUND: Molar-incisor hypomineralization (MIH) is a common condition among children that significantly increases the risk of caries. The objective of this research was to evaluate the clinical success of giomer- and conventional resin-based sealants applied on first permanent molars (FPMs) affected by MIH. METHODS: One-hundred FPMs with MIH which were indicated for non-invasive fissure sealant were selected in 39 children, aged 6-12 years. Using a split mouth design, the FPMs were randomized into two groups; Group 1. Resin sealant (etch-and-rinse + Conceal F) and Group 2. Giomer sealant (self-etch primer + BeautiSealant). Clinical evaluation was performed using the modified United States Public Health Service (USPHS) criteria at 1, 3, 6 and 12 months. The Log-rank, Fisher's exact test and Kaplan-Meier analysis were used for statistical analysis. RESULTS: At 12 months, the retention rates in Group 1 and Group 2 were 68% and %8, respectively (p = 0.000). The cumulative survival rates of conventional resin sealants were significantly higher than giomer sealants for all follow-up visits (p < 0.05). In Groups 1 and 2, the distribution of unsuccessful sealants on mandibular vs maxillary FPMs were 32.1% vs 31.8% (p = 0.612) and 91.7% vs 92.3% (p = 0.664), respectively. Although the success rate was higher for teeth with white opacities or lesions with less extension in Group 1, no significant difference was found. The average survival time was found as 10.46 ± 3.21 months in Group 1 and 4.02 ± 4.43 months in Group 2. CONCLUSIONS: The conventional resin-based sealants yielded a better clinical performance over the 12-month evaluation period than the giomer sealants which were applied with self-etch primer. The high failure rate observed in giomer sealants could be explained by the possible deficiency in the etching capacity of self-etch primer on MIH-affected teeth. Trial registration ClinicalTrials.gov, NCT04929782. Registered 10 June 2021-Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT04929782 .


Assuntos
Cárie Dentária , Hipoplasia do Esmalte Dentário , Criança , Cárie Dentária/prevenção & controle , Humanos , Incisivo , Dente Molar , Selantes de Fossas e Fissuras/uso terapêutico , Estados Unidos
9.
J Contemp Dent Pract ; 23(2): 143-148, 2022 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-35748441

RESUMO

AIM: The aim of the study was to compare the fracture resistance of the single-cone technique with the warm vertical compaction technique (WVCT) in mandibular incisors using Bio-C sealer®, by applying a compressive force using a universal testing machine (UTM) (Instron 5943; Instron, Norwood, Massachusetts, USA). MATERIALS AND METHODS: Twenty-two mandibular incisors were selected and divided into two groups after applying the same shaping protocol. To assess the influence of the wave vertical compaction technique on the fracture resistance, the first group was obturated by a single-cone obturation technique (SCOT) (n = 12), and the second group was obturated with a WVCT (n = 10). Bio-C sealer® (Angelus, Hague Netherlands) was used in the two obturation techniques. Wax-coated roots were put in an acrylic mold and loaded to compressive strength fracture in a mechanical material testing machine (UTM) (Instron 5943; Instron, Norwood, Massachusetts, USA), with Bluehill 3 software (version 3.15.1343) recording the maximum load at fracture. Fracture loads were compared statistically, and data were examined with the Mann-Whitney U test with a level of significance set at p ≤0.05. RESULTS: No statistically significant difference was registered between the SCOT (264.97 ± 83.975 N) and WVCT (313.35 ± 89.149 N) concerning the endodontically treated mandibular incisors' fracture resistance (p = 0.159). CONCLUSION: Warm vertical compaction technique (WVCT) did not affect the fracture resistance of endodontically treated mandibular incisors when compared to SCOT canal preparation. CLINICAL SIGNIFICANCE: General practitioners and endodontists face challenges during root canal treatment such as cracks and root fractures. This article aims to guide experts in choosing between the single-cone and the continuous WVCT aiming for higher long-term quality of root canal filling.


Assuntos
Guta-Percha , Materiais Restauradores do Canal Radicular , Resinas Epóxi , Guta-Percha/uso terapêutico , Incisivo , Materiais Restauradores do Canal Radicular/uso terapêutico , Obturação do Canal Radicular/métodos , Preparo de Canal Radicular/métodos
10.
J Clin Periodontol ; 47(8): 1006-1015, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32542725

RESUMO

AIMS: To evaluate the hard and soft tissue alterations of immediately placed and provisionalized implants with or without connective tissue graft (CTG). MATERIALS AND METHODS: Single unsalvageable maxillary incisors were replaced with immediately placed and provisionalized implants in 42 participants. The patients were randomly assigned to receive simultaneous CTG (test group) and not receive CTG (control group). Digital impression and cone-beam computed tomography images were obtained before extraction and after 6 months. Mid-facial gingival margin migrations, soft tissue contour changes and hard tissue remodelling were analysed and compared between the two groups using three-dimensional superimposition method. RESULTS: Forty participants completed the study. The test group showed significantly less buccal tissue collapse in the area 2-5 mm apical to the gingival margin. In both groups, the mid-facial gingival margin migrated in an apico-palatal direction and the socket void, except for a triangular space in the bucco-coronal region, demonstrated radiographic new bone formation without statistically significant differences. CONCLUSIONS: The CTG used with immediate implant placement and provisionalization could compensate for the facial tissue collapse, but it did not benefit maintenance of the mid-facial gingival margin position during the 6-month follow-up. New bone formation observed radiographically can be expected in most areas of the socket void, regardless of CTG use (ChiCTR-1900028494).


Assuntos
Implantes Dentários para Um Único Dente , Carga Imediata em Implante Dentário , Tomografia Computadorizada de Feixe Cônico , Tecido Conjuntivo/diagnóstico por imagem , Tecido Conjuntivo/transplante , Humanos , Incisivo/diagnóstico por imagem , Maxila/diagnóstico por imagem , Maxila/cirurgia , Alvéolo Dental/diagnóstico por imagem , Alvéolo Dental/cirurgia , Resultado do Tratamento
11.
Oral Dis ; 26(2): 457-464, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31742839

RESUMO

OBJECTIVE: To describe oral alterations in children with congenital Zika syndrome (CZS). METHODS: This was a case series, whose research instrument was a structured questionnaire, associated with the use of medical record data and extra and intraoral clinical examination. RESULTS: Thirty-two children were evaluated, the majority male (18/32%-56.3%), mean age 22 months (SD = 2.71). It was also observed that the majority of the patients (19/32%-59.4%) presented a low family income. All the children had a mean head circumference of 29.43 cm (SD = 1.42). Regarding the alterations, an ogival-shaped palate was observed in 14 children (43.7%), and delayed chronology of eruption was observed in 15 children (46.9%), of whom 7 children (21.9%) did not present eruption of the upper left lateral incisor (p = .0002) and upper right lateral incisor (p = .002) until the moment of analysis. Additionally, 03 children with yellowish dental pigmentation were identified in erupted teeth after the onset of phenobarbital use. Enamel hypoplasia was identified in 9 children (28.1%) and only one child with ankyloglossia. CONCLUSION: CZS may present delayed chronology of eruption, ankyloglossia, ogival-shaped palate, and enamel hypoplasia, requiring dental follow-up aimed at prevention, promotion, and rehabilitation of the health of these children.


Assuntos
Hipoplasia do Esmalte Dentário/virologia , Anormalidades Dentárias/virologia , Erupção Dentária , Infecção por Zika virus/complicações , Humanos , Incisivo/patologia , Lactente , Masculino , Zika virus
12.
Gen Dent ; 68(1): 61-64, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31859665

RESUMO

Actinomycosis is caused by gram-positive, branching, filamentous, anaerobic bacteria of the genus Actinomyces. This case report describes treatment of a 35-year-old woman who had a progressive apical lesion after nonsurgical endodontic retreatment of her maxillary left lateral incisor. The area had localized soft tissue swelling, and the tooth was sensitive to percussion. Radiographic evaluation showed a large apical lesion with a clear margin. After treatment options, including extraction, were discussed, the patient chose to preserve the tooth through endodontic surgery. Root-end resection, canal preparation, and filling with calcium-enriched mixture cement were performed. Histopathologic examination of surgical specimens revealed a radicular cyst associated with actinomycosis. At an 18-month follow-up, the patient was symptom free and bone healing was almost completed. Periradicular actinomycosis is one of the most common reasons for the failure of nonsurgical endodontic treatment and retreatment. If a tooth is nonresponsive to nonsurgical endodontic treatments, apical actinomycotic infection should be suspected and a surgical approach should be planned to obtain a successful outcome.


Assuntos
Actinomicose , Apicectomia , Actinomicose/cirurgia , Adulto , Feminino , Humanos , Incisivo , Retratamento , Preparo de Canal Radicular , Tratamento do Canal Radicular , Resultado do Tratamento
13.
J Formos Med Assoc ; 118(1 Pt 2): 362-370, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29937322

RESUMO

BACKGROUND/PURPOSE: Although unset mineral trioxide aggregate (MTA) has some cytotoxicity, MTA is still a biocompatible material suitable for doing apexification. This study assessed the outcomes for 8 necrotic immature open-apex permanent maxillary central incisors treated by MTA apexification using poly(ε-caprolactone) fiber mesh (PCL-FM) as an apical barrier (so-called PCL-FM/MTA apexification) to prevent extrusion of MTA materials into the periapical tissues of open-apex teeth. METHODS: Eight necrotic immature open-apex permanent maxillary central incisors with the open apices measuring 2.5 mm-3.5 mm in diameter in 8 patients (6 boys and 2 girls; age range, 8-10 years) were first cleaned using ultrasonic activated irrigation with 2.5% sodium hypochlorite solution and then treated by PCL-FM/MTA apexification procedure. RESULTS: All the 8 permanent maxillary central incisors showed successful outcomes after PCL-FM/MTA apexification procedure. The mean duration for apical hard tissue barrier formation of the 8 incisors was 6.8 ± 0.5 weeks (range 6-7 weeks). The mean increased root length was 1.8 ± 0.7 mm (range 1-3 mm) at 7 weeks and 3.1 ± 0.6 mm (range 2-4 mm) at 3 months. The mean increased dentinal wall thickness at the most apical portion of the root was 1.3 ± 0.5 mm (range 1-2 mm) at 7 weeks and 2.4 ± 0.6 mm (range 1.5-3 mm) at 3 months. None of the teeth treated by PCL-FM/MTA apexification showed tooth discoloration after a follow-up period of 3 months. CONCLUSION: PCL-FM/MTA apexification is an excellent technique for treatment of necrotic immature open-apex permanent maxillary central incisors.


Assuntos
Compostos de Alumínio/uso terapêutico , Apexificação , Compostos de Cálcio/uso terapêutico , Necrose da Polpa Dentária/terapia , Óxidos/uso terapêutico , Poliésteres/uso terapêutico , Materiais Restauradores do Canal Radicular/uso terapêutico , Silicatos/uso terapêutico , Criança , Combinação de Medicamentos , Feminino , Humanos , Incisivo , Masculino , Preparo de Canal Radicular/métodos , Taiwan , Resultado do Tratamento
14.
J Craniofac Surg ; 30(8): e692-e694, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31584555

RESUMO

This article reports a clinical case of a boy who underwent an avulsion of the upper right central incisor at 8 years old. The avulsed tooth was kept in the socket for 11 years after replantation. The clinical and radiographic findings after 14 years revealed a complete root resorption, but alveolar bone volume is adequate for future implantation from the recent tomography scans view, even in labial area where alveolar bone morphology is poor.


Assuntos
Avulsão Dentária/cirurgia , Reimplante Dentário , Criança , Humanos , Incisivo , Masculino , Reabsorção da Raiz , Resultado do Tratamento , Adulto Jovem
15.
Int J Paediatr Dent ; 29(1): 50-57, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30264472

RESUMO

BACKGROUND: Efficient endodontic instrumentation of primary teeth is a challenge for paediatric dentists. AIM: To evaluate biomechanical outcomes of endodontic instrumentation with a reciprocating system in a polymer-prototyped primary maxillary central incisor. DESIGN: The specimen was systematically instrumented and micro-CT scanned before and after each file. The amount of debris, percentage of non-instrumented areas, removed dentin volume, and lower dentin thickness at specific points along the root canal were analyzed. RESULTS: A 10% increase in removed dentin volume was observed when R40 was compared to R25 (14.5% vs 4.2%). When comparing R50 with R40, this increase was only 3.4% (17.9% vs 14.5%). In the root cervical third, there was substantial reduction in dentin thickness with R50 (48.8%), followed by R40 (39.5%) and R25 (18.6%). There was no difference between R25 and R40 in the removal of dentin at the apical third (15.8%), while R50 resulted in 39.8% reduction in dentin thickness. Percentage of non-instrumented areas were the same for all files. Accumulated debris with R40 and R50 was the same (0.19 mm³) while for R25 was 0.11 mm³. CONCLUSIONS: The Reciproc® system was effective for instrumentation of a prototyped primary maxillary central incisor. The most suitable file for apical preparation was R40.


Assuntos
Incisivo/cirurgia , Dente Decíduo/cirurgia , Instrumentos Odontológicos , Dentina , Humanos , Maxila , Resultado do Tratamento
16.
Am J Orthod Dentofacial Orthop ; 156(2): 275-282, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31375238

RESUMO

This case report describes the interdisciplinary treatment of an ectopic horizontally placed maxillary right central incisor with severe root dilaceration. The root was distally angulated and entrapped by the root of the maxillary right lateral incisor. The initial force system was aimed at an occlusal displacement and applied to the crown. During the second phase, a button was cemented onto the apex of the impacted tooth. A force from the apex to a temporary anchorage device in the palate moved the root toward the midline. Finally, a root canal and an apectomy were performed and the central incisor could be moved to its ideal position. The treatment generated a normal height of the alveolar bone and an ideal occlusion with a healthy periodontium.


Assuntos
Incisivo/cirurgia , Técnicas de Movimentação Dentária/métodos , Raiz Dentária/cirurgia , Dente Impactado/cirurgia , Dente Impactado/terapia , Fenômenos Biomecânicos , Criança , Tomografia Computadorizada de Feixe Cônico/métodos , Cavidade Pulpar , Feminino , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento Tridimensional , Má Oclusão Classe I de Angle/terapia , Maxila/anatomia & histologia , Maxila/diagnóstico por imagem , Maxila/cirurgia , Aparelhos Ortodônticos Fixos , Extrusão Ortodôntica/métodos , Planejamento de Assistência ao Paciente , Tratamento do Canal Radicular , Coroa do Dente , Dente Impactado/diagnóstico por imagem , Resultado do Tratamento
17.
Niger J Clin Pract ; 22(2): 276-280, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30729955

RESUMO

Ectopic eruption originates from the malpositioning of a tooth bud ending in the eruption of the tooth in an improper direction. This anomaly is a consequence of ectopic development of the tooth germ. This condition gives rise to significant aesthetic and occlusal issues in the early mixed dentition stage. The most frequently influenced teeth are the maxillary first molars, accompanied by the maxillary cuspids. Ectopic eruption is seldom seen and might derive from traumatic injury. In some cases, hyperplastic and fibrotic gingival tissue may lead to ectopic eruption of a permanent incisor. Managing ectopically erupting teeth generally rests on several reasons including extraction of supernumerary tooth, removal of cyst and excision of hyperplastic tissue and subsequent to orthodontic movement of tooth if necessary. In this case, the use of Er, Cr: YSGG lasers for the correction of hyperplastic soft tissues involving ectopically erupting permanent incisors are depicted considering two cases.


Assuntos
Incisivo/patologia , Incisivo/fisiopatologia , Lasers , Erupção Ectópica de Dente/terapia , Erupção Dentária , Dente Supranumerário/cirurgia , Criança , Dente Canino , Dentição Mista , Feminino , Gengiva , Humanos , Masculino , Dente Molar , Dente Supranumerário/patologia , Resultado do Tratamento
18.
Am J Orthod Dentofacial Orthop ; 154(4): 570-582, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30268267

RESUMO

This case report shows the treatment of a severe traumatic tooth injury. For the maxillary right central incisor, the trauma was considered a complicated crown-root fracture. The level of the fracture line, the length of the remaining root segment, and the presence and condition of the tooth fragment determined the type of therapy. Traumatized teeth with fractures below the alveolar crest are often considered hopeless. As this report shows, the treatment of a complicated crown-root fracture in the esthetic region can be challenging. Orthodontic extrusion and crown-length surgery were performed to bring the fracture line above the alveolar bone crest. A multidisciplinary approach was required for complete rehabilitation of the traumatized maxillary incisor. Suggestions are made to improve treatment planning of complicated crown-root fractures.


Assuntos
Incisivo/lesões , Incisivo/cirurgia , Maxila/cirurgia , Extrusão Ortodôntica/métodos , Fraturas dos Dentes/cirurgia , Fraturas dos Dentes/terapia , Raiz Dentária/lesões , Raiz Dentária/cirurgia , Adulto , Processo Alveolar/lesões , Processo Alveolar/cirurgia , Cerâmica , Tomografia Computadorizada de Feixe Cônico , Porcelana Dentária , Restauração Dentária Permanente , Restauração Dentária Temporária , Facetas Dentárias , Estética Dentária , Feminino , Humanos , Incisivo/diagnóstico por imagem , Técnica para Retentor Intrarradicular , Pulpotomia , Tratamento do Canal Radicular , Coroa do Dente/diagnóstico por imagem , Coroa do Dente/lesões , Coroa do Dente/cirurgia , Fraturas dos Dentes/diagnóstico por imagem , Raiz Dentária/diagnóstico por imagem , Resultado do Tratamento
19.
J Pak Med Assoc ; 68(7): 1110-1112, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30317314

RESUMO

This case report presents a novel approach towards the preservation of alveolar ridge dimensions following the extraction of an upper left lateral incisor. The extracted teeth of a 56-year old patient was ground with a diamond bur running under the normal saline spray. Sedimented fine tooth-powder was collected and mixed with 2.0 ml of patient's intravenous blood. The powdered paste pushed inside the tooth socket by means of plugger until the socket was filled, leaving a space of 3mm only. The socket was sutured with a non-resorbable silk material. After one week, the adjacent tooth were endodontically prepared and a fixed partial denture was placed on the prepared abutments. The results suggest therapeutic approach with no immune response, which can be implemented at chairside. A significant preservation of alveolar ridge can be maintained using this novel approach.


Assuntos
Processo Alveolar/patologia , Reabsorção Óssea/prevenção & controle , Incisivo/transplante , Alvéolo Dental/cirurgia , Sangue , Dente Suporte , Prótese Parcial Fixa , Humanos , Masculino , Pessoa de Meia-Idade , Extração Dentária
20.
Bull Tokyo Dent Coll ; 59(2): 111-119, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29962418

RESUMO

Here, we report a case of gingival fenestration requiring periodontal plastic surgery. The patient was a 32-year-old man presenting with the chief complaint of esthetic impairment and gingival twitching due to gingival fenestration. Baseline examination revealed localized periodontal breakdown, including gingival fenestration in the lower right central incisor (#41). Periodontal examination revealed 3% of sites with a probing depth of ≥4 mm and 8.9% with bleeding on probing. Radiographic examination revealed vertical bone loss in #15 and 36, together with buccal fenestration in #41. Based on a clinical diagnosis of chronic periodontitis with gingival fenestration, initial periodontal therapy comprised plaque control and scaling and root planing. Following suppression of inflammation, occlusal adjustment was performed in the anterior teeth. As plastic surgery, combined use of an elevated flap and a connective tissue graft was applied at #41. Following reevaluation, the patient was placed on maintenance care. The patient's periodontal condition has remained stable over a 6-month period.


Assuntos
Tecido Conjuntivo/transplante , Gengiva/cirurgia , Retração Gengival/cirurgia , Retração Gengival/terapia , Cirurgia Plástica/métodos , Transplante de Tecidos/métodos , Adulto , Perda do Osso Alveolar/cirurgia , Periodontite Crônica/cirurgia , Periodontite Crônica/terapia , Gengiva/diagnóstico por imagem , Retração Gengival/diagnóstico por imagem , Humanos , Incisivo/cirurgia , Masculino , Bolsa Periodontal/diagnóstico por imagem , Bolsa Periodontal/cirurgia , Retalhos Cirúrgicos , Resultado do Tratamento
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