Influence of ozonized water on pain, oedema, and trismus during impacted third molar surgery: a randomized, triple blind clinical trial.

BACKGROUND: This study aimed to evaluate the efficacy of ozonized water on pain, oedema and trismus after impacted third molar mandibular surgeries when compared to double distilled water. A randomized triple blind trial was conducted. METHODS: Patients with third molars class II-B of Pell-Gregory were included, and surgical extraction was performed. Irrigation was done with ozonized (group 1) or double distilled water (group 2). The type of irrigation and the side to be operated were randomized. Neither the patients nor the operator or evaluator were aware of the irrigation solution. Pain, oedema and trismus were evaluated at baseline, 24-h, 48-h, 72-h and 7-days after treatment. The data were evaluated by Friedman, Wilcoxon, Mann-Whitney tests, and size effect. RESULTS: It was included 8 men and 12 women, with a mean age of 20.9y.o. The initial pain mean was 7.94 (±12.81) (group 1) and 5.50 (±9.12) (group 2) (p > 0,05). There was a statistically significant reduction of pain, oedema and trismus in intragroup analysis (p < 0.05). There was no statistically significant difference (p > 0.05) when comparing the oedema and trismus between groups. The size effect ranged from small (0.23) to large (1.29). CONCLUSIONS: It was concluded that ozonized water was compatible as irrigation method, not inferior to double distilled water, and had satisfactory effects on management of pain, oedema and trismus after surgical removal of the third molar. TRIAL REGISTRATION: This clinical trial was registered in ClinicalTrials.gov NCT03501225 on April 18, 2018.

Is bromelain effective in controlling the inflammatory parameters of pain, edema, and trismus after lower third molar surgery? A systematic review and meta-analysis.

The aim of this systematic review was to evaluate the clinical evidences of the bromelain in minimizing inflammatory parameters such as pain, edema, and trismus after lower third molar surgeries. An electronic search was conducted in six databases through November 2017. The eligibility criteria included randomized and non-randomized clinical trials and/or comparative studies that used bromelain after lower third molar surgeries. The search strategy resulted in 117 articles. Following the selection process, seven studies were included in the systematic review and four in the meta-analysis. In terms of the risk of bias analysis, all the evaluated studies were classified as low or unclear risk of bias in the following criteria: selection bias, detection bias, and reporting bias. The final quantitative analysis of the variables showed that the use of bromelain resulted in greater reduction of pain levels (mean difference [MD]: -0.38; 95% confidence interval [CI; -0.66 to -0.09]), edema (MD: -0.34; 95% CI [ -0.68 to -0.01]), and trismus (MD: -2.01; 95% CI [ -3.99 to -0.02]) among the analyzed groups. The results suggest that the bromelain appears to be effective in the control of pain, edema, and trismus after lower third molar surgeries; however, further high-quality studies are needed to confirm this finding.

Enamel renal syndrome: A novel homozygous FAM20A founder mutation in 5 new Brazilian families.

Enamel renal syndrome (ERS) is a rare autosomal recessive disorder not fully characterized. Here we investigated ERS characteristics in 11 patients from 5 Brazilian families through clinical examination, imaging, renal ultrasonography, laboratory tests and DNA sequencing. The patients' age ranged from 6 to 25 years-old, and the presence of hypoplastic amelogenesis imperfecta, microdontia, intra-pulpal calcification, impacted posterior teeth with hyperplastic pericoronal follicles, gingival fibromatosis, ectopic calcifications on gingival and pericoronal tissues, and nephrocalcinosis were common findings to all patients. Only 4 patients showed abnormal laboratory tests (vitamin D, parathyroid hormone, phosphate, calcium). Intellectual disability and renal cysts were present in 2 patients each. Biallelic loss of function mutation in FAM20A gene, characterized by one base pair deletion in exon 11, resulting in a frameshift replacing a glutamine at codon 483 for a lysine and terminating at position 24 [NG_029809.1: c.1447delG; p.(Glu483Lysfs*24)], was detected in all patients, strongly suggesting a founder effect. Our results reinforce the distinct orofacial features of ERS, which are the clue for kidney examination and genetic testing. Early diagnosis is essential to minimize the deleterious effects related to ERS. Here we report the largest series of patients with ERS in a same population, and describe, for the first time, a founder mutation for FAM20A.

Third Molar and Their Relationship with Caries on the Distal Surface of Second Molar: A Meta-analysis.

PURPOSE: The aim of this meta-analysis was to determine which characteristics of mandibular third molars (MTMs) are more often associated with an increase in the prevalence/incidence of caries on the distal surface of mandibular second molars (MSMs). METHODS: Three electronic databases were analyzed: PubMed; OVID and the Virtual Health Library. Observational studies were included, and the risk of bias was assessed using The Newcastle-Ottawa Scale. The Comprehensive Meta-Analysis software program was used for meta-analysis. RESULTS: Fifteen studies were included in this systematic review, and five were included in the meta-analysis. The distal surface of MSMs were more likely to exhibit caries in the following scenarios: when MTMs were found in the A position, rather than the C position (OR: 3.45, 95% CI: 2.28-5.22, p<0.001); when the horizontal position was compared with the vertical (OR: 8.12, 95% CI: 3.75-17.58, p<0.001) and distoangular (OR: 9.75, 95% CI: 3.49 - 27.25, p<0.001) positions; and when the mesioangular position was compared with the vertical (OR: 7.25, 95% CI: 3.48-15.10, p<0.001) and distoangular (OR: 9.54, 95% CI: 3.47 - 26.21, p<0.001) positions. CONCLUSION: The results of this study suggest that the presence of MTMs increases the incidence of caries on the distal surface of MSMs. Furthermore, caries on the distal surface of MSMs is more commonly associated with position A and horizontal and mesioangular mandibular molars.

Hemodynamic Behavior in Third Molar Surgeries Using Lidocaine or Articaine / Comportamiento Hemodinámico en Cirugías de los Terceros Molares Utilizando Lidocaína vs Articaina

SUMMARY: The aim of this research was to assess the hemodynamic variations during the extraction of impacted lower third molars using lidocaine 2 % or articaine 4 %, as local anesthetics. Fourteen patients with a mean age of 22.4 (SD=3.25), were submitted to the bilateral extraction of lower third molars, with an interval of three to four weeks between the two extractions. Systolic blood pressure, diastolic blood pressure, mean arterial pressure, heart rate and oxygen saturation in the blood were assessed at seven specific time points: baseline; anesthetic puncture; two minutes after anesthesia; osteotomy; suture and five minutes after the procedure had been completed. The statistical analysis involved descriptive analysis, the Shapiro-Wilk test, the Mann-Whitney test, the t-test and the repeated measurements test. No significant differences were found for any of the hemodynamic behavior variables when comparing lidocaine 2 % and articaine 4 %. Significant differences were found between the time points assessed within each group, particularly in relation to the variable heart rate. In the articaine group, systolic blood pressure exhibited a significant decrease five minutes after the procedure. There were no significant variations in hemodynamic behavior between the two different anesthetic groups (articaine 4 % and lidocaine 2 %).

RESUMEN: El objetivo de esta investigación fue evaluar las variaciones hemodinámicas durante la extracción de terceros molares inferiores impactados utilizando lidocaína al 2 % o articaína al 4 %, como anestésicos locales. Catorce pacientes con una edad promedio de 22,4 (SD = 3,25), fueron sometidos a la extracción bilateral de terceros molares inferiores, con un intervalo de tres a cuatro semanas entre las dos extracciones. Se evaluaron la presión arterial sistólica, la presión arterial diastólica, la presión arterial media, la frecuencia cardíaca y la saturación de oxígeno en la sangre, en siete momentos específicos: línea base; punción anestésica; dos minutos después de la anestesia; osteotomía; sutura y cinco minutos después de que el procedimiento fue completado. El análisis estadístico involucró el análisis descriptivo, la prueba de Shapiro-Wilk, la prueba de Mann-Whitney, la prueba t y la prueba de mediciones repetidas. No se encontraron diferencias significativas para ninguna de las variables de comportamiento hemodinámico al comparar lidocaína 2 % y articaína 4 %. Se encontraron diferencias significativas entre los puntos de tiempo evaluados dentro de cada grupo, particularmente en relación con la frecuencia cardíaca variable. En el grupo de articaína, la presión arterial sistólica exhibió una disminución significativa cinco minutos después del procedimiento. No se observaron variaciones significativas en el comportamiento hemodinámico entre los dos grupos anestésicos diferentes (articaína 4 % y lidocaína 2 %).

Multiple Desmoplastic Cellular Neurothekeomas in Child: Report of the First Oral Case and Review of the Literature.

Cellular neurothekeomas (CNs) are distinctive benign tumors of uncertain histogenesis, with predilection for the skin of the head and neck region. We describe the first case of multiple desmoplastic CNs (DCNs) affecting the oral cavity in a 9-year-old girl. Histopathologic evaluation showed a proliferation of spindle and epithelioid cells, forming nests and bundles, supported by exuberant fibrous stroma, as well as scattered multinucleated floret-like giant cells. The tumor cells were immunopositive for vimentin, CD63, CD56, whereas AE1/AE3, S100, CD34, α-SMA, GFAP, EMA, CD57 and NSE were negative. Ki-67 was <2%. Multiple DCNs should be considered in the differential diagnosis of oral nodular lesions.

Pre-Emptive Effect of Dexamethasone and Diclofenac Sodium Associated With Codeine on Pain, Swelling, and Trismus After Third Molar Surgery: A Split-Mouth, Randomized, Triple-Blind, Controlled Clinical Trial.

PURPOSE: We aimed to compare the effect of dexamethasone, 8 mg, and diclofenac sodium, 50 mg, associated with codeine, 50 mg, on the control of pain, swelling, and trismus after extraction of impacted third molars. MATERIALS AND METHODS: Fifteen healthy patients with a mean age of 22.8 years (SD, 12.62 years) received a single oral dose of either drug 1 hour before each surgical procedure (left and right teeth). At 24, 48, and 72 hours after surgery, swelling was determined by use of linear measurements on the face and trismus was determined by maximal mouth opening. Postoperative pain was self-recorded by the patients using a numerical rating scale at 24-hour intervals for a period of 72 hours. Data analysis involved descriptive statistics and Shapiro-Wilk, Wilcoxon, and paired t tests (P < .05). RESULTS: Dexamethasone controlled pain (P = .016) and edema (P = .08) within 48 hours better than diclofenac sodium associated with codeine. No statistically significant differences were found between drugs regarding trismus and consumption of rescue analgesics (acetaminophen). CONCLUSIONS: The results of this study suggest that pre-emptive administration of dexamethasone, 8 mg, showed better control of pain and swelling in bilateral extractions of third impacted mandibular molars.

Preemptive Effect of Dexamethasone in Third-Molar Surgery: A Meta-Analysis.

The aim of the present study was to assess the effectiveness of preemptive dexamethasone in surgery of the lower third molars and to compare it with other oral anti-inflammatories. An electronic search was conducted for preemptive effects related to lower third-molar surgery in 3 separate databases. The variables pain, swelling, and trismus were assessed. Meta-analysis was used to calculate the pooled effect measures for mean and standard deviation values (95% confidence interval [CI]). Seven split-mouth clinical trials were selected. Two studies were included in the meta-analysis. Three studies showed a low risk of bias; 2 studies exhibited a moderate risk and 2 a high risk of bias. Dexamethasone was better than nonsteroidal anti-inflammatories for preemptive effectiveness. Meta-analysis for swelling confirmed better results for dexamethasone than for methylprednisolone after 2 days (95% CI = -1.28 to -0.38), 4 days (95% CI = -1.65 to -0.71), 7 days (95% CI = -1.42 to -0.71), and overall (95% CI = -1.25 to -0.72). Dexamethasone was better than methylprednisolone for mouth opening after 4 days (95% CI = 0.18 to 1.07). There is insufficient evidence through meta-analysis to conclude that dexamethasone is better than other nonsteroidal anti-inflammatories or methylprednisolone as a preemptive analgesic. The results of this meta-analysis suggest that dexamethasone is more effective than methylprednisolone for swelling and trismus.

Local Flap Technique After Removing Premaxilla for Closure of Oronasal Fistula.

This letter aimed to describe a surgical technique for oronasal fistula closure that promotes efficient healing and minimizes recurrence. The oronasal fistula was repaired by buccal flap. The technique proved to be simple and efficient.

Rotary Instrument or Piezoelectric for the Removal of Third Molars: a Meta-Analysis.

AIM: The aim of this systematic review and meta-analysis was to compare, in the lower third molar surgery, the osteotomy techniques with rotary instruments and piezoelectric motors. METHODS: An electronic search was conducted using the following databases: Pubmed, Web of Science, and the Cochrane Oral Health Group Trials Register. Inclusion criteria were: studies in humans, randomized or nonrandomized, comparing the extraction of third molars that required osteotomy and/or odontosection with rotary instrument and osteotomy and/or odontosection with piezoelectric motor assistance. The analysis and inclusion of articles was performed by two reviewers independently. An evaluation of the quality of articles and data extraction was carried out. RESULTS: From a total of nine hundred seventy four (974) trials, eleven articles were included in the qualitative analysis, and seven were included in the quantitative analysis. Rotary instruments were faster than the piezoelectric surgery (95 % CI 0.34 to 1.16). The piezoelectric surgery showed better results when compared with roatry instruments when trismus was assessed in 2 (95 % CI 0.65 to 1.69), 3 (95 % CI 0.63 to 1.67) and 5 (95 % CI 0.03 to 2.26) days after surgery. Seven days after surgery, there were no differences between the techniques (95 % CI (-0.022) to (-1.49)). CONCLUSION: The piezoelectric surgery was effective in reducing pain, swelling and trismus in third molar surgery, but the same requires greater surgical time than the rotary instruments.

Impact of mandibular third molar extraction in the second molar periodontal status: A prospective study.

AIM: The aim of the present study was to assess the periodontal condition and sensitivity of second mandibular molars after the extraction of the adjacent third molar, while also assessing the quality of life of the patients. MATERIALS AND METHODS: Twenty-three healthy patients were assessed in terms of probing depth, gingival height, gingival thickness, dental sensitivity, plaque index and bleeding on probing (adjacent second mandibular molar), before the surgical procedure, as well as 60 and 180 days after the surgery. The following data were also recorded and measured: the position and size of the impacted teeth; the size of the alveoli after surgery and the quality of life of the patient. RESULTS: Significant differences were found for probing depth and gingival height before and after 180 days. The plaque index increased significantly after surgery (P = 0.004), as did bleeding on probing. No significant difference was found for the quality of life. The size of the third molar extracted was correlated with bleeding on probing 180 days after the surgery. CONCLUSION: An improvement was noted in the periodontal condition of the second mandibular molars after the extraction, based on the assessments of probing depth and gingival height. The position of the third molar affected the periodontal condition of the second mandibular molar. No alterations were recorded for dental sensitivity or the quality of life after the extraction.

Exclusive Primary Lesion of Oral Leishmaniasis with Immunohistochemical Diagnosis.

A case of oral leishmaniasis without cutaneous involvement affecting the upper alveolar ridge mucosa/gingiva and the hard palate is reported in a 41-year-old Brazilian man. Microscopic examination disclosed scarce amastigotes and the definitive diagnosis was facilitated by immunohistochemical analysis. The clinical presentation of this lesion is unusual and underlies the importance of considering leishmaniasis in the differential diagnosis of oral lesions, especially in endemic areas. A literature review of the cases of mucosal leishmaniasis with exclusive primary lesions of the oral mucosa was also performed.

Is the Erich arch bar the best intermaxillary fixation method in maxillofacial fractures? A systematic review.

BACKGROUND: Intermaxillary fixation is used to achieve proper occlusion during and after oral and maxillofacial fracture surgery. The aim of this systematic review was to compare Erich arch bar fixation with other intermaxillary fixation methods in terms of the operating time, safety during installation, oral health maintenance and occlusal stability. MATERIAL AND METHODS: An electronic online search was conducted of the Scirus, PubMed, Ovid, Cochrane Library and VHL databases. A clinical trial dating from the inception of the data bases until August 2013 was selected. Studies that compared Erich arch bars with other intermaxillary fixation methods in patients older than 18 years-old were included. The studies were assessed by two independent reviewers. The methodological quality of each article was analyzed. RESULTS: Nine hundred and twenty-five manuscripts were found. Seven relevant articles were analyzed in this review. The risk of bias was considered moderate for four studies and high for three clinical trials. CONCLUSIONS: There is not enough evidence to conclude that the Erich arch bar is the best intermaxillary fixation method in cases of oral and maxillofacial fractures.

FASN expression, angiogenesis and lymphangiogenesis in central and peripheral giant cell lesions

Central giant cell lesion (CGCL) and peripheral giant cell lesion (PGCL) are non-neoplastic proliferative processes of the jaws. PGCL is a reactive process induced by irritant local factors and CGCL is an intra-osseous lesion of unknown etiology. Both lesions exhibit similar histologic features showing abundant mononuclear cells, admixed with a large number of multinucleated giant cells and a rich vascularized stroma with extravasated erythrocytes, hemosiderin deposition, and blood-filled pools. Recent studies have linked fatty acid synthase (FASN) with angiogenesis. Objective: To evaluate angiogenesis and lymphangiogenesis and their relationship with FASN expression in CGCL and PGCL. Material and Methods: Thirteen CGCL and 14 PGCL of the jaws were selected for immunoexpression of FASN; CD34 and CD105 (to assess blood microvessel density [MVD] and microvessel area [MVA]); and D2-40 (to assess lymphatic MVD and MVA). Results: Within PGCL and CGCL, MVD-CD34 was signifcantly higher than MVD-CD10S, followed by MVD-D2-40. Moreover, a signifcantly higher number of FASN-positive multinucleated giant cells than mononuclear cells were observed. Between PGCL and CGCL, only MVD-CD34 and all MVA were signifcantly higher in PGCL. Positive correlation between MVA-CD10S with FASNpositive mononuclear cells in both lesions was observed. Conclusions: Our results show both lesions exhibiting similar levels of FASN expression and neoangiogenesis, suggesting constitutive processes that regulate tissue maintenance. .

FASN expression, angiogenesis and lymphangiogenesis in central and peripheral giant cell lesions.

UNLABELLED: Central giant cell lesion (CGCL) and peripheral giant cell lesion (PGCL) are non-neoplastic proliferative processes of the jaws. PGCL is a reactive process induced by irritant local factors and CGCL is an intra-osseous lesion of unknown etiology. Both lesions exhibit similar histologic features showing abundant mononuclear cells, admixed with a large number of multinucleated giant cells and a rich vascularized stroma with extravasated erythrocytes, hemosiderin deposition, and blood-filled pools. Recent studies have linked fatty acid synthase (FASN) with angiogenesis. OBJECTIVE: To evaluate angiogenesis and lymphangiogenesis and their relationship with FASN expression in CGCL and PGCL. MATERIAL AND METHODS: Thirteen CGCL and 14 PGCL of the jaws were selected for immunoexpression of FASN; CD34 and CD105 (to assess blood microvessel density [MVD] and microvessel area [MVA]); and D2-40 (to assess lymphatic MVD and MVA). RESULTS: Within PGCL and CGCL, MVD-CD34 was signifcantly higher than MVD-CD10S, followed by MVD-D2-40. Moreover, a signifcantly higher number of FASN-positive multinucleated giant cells than mononuclear cells were observed. Between PGCL and CGCL, only MVD-CD34 and all MVA were signifcantly higher in PGCL. Positive correlation between MVA-CD10S with FASNpositive mononuclear cells in both lesions was observed. CONCLUSIONS: Our results show both lesions exhibiting similar levels of FASN expression and neoangiogenesis, suggesting constitutive processes that regulate tissue maintenance.

Morphological characterization of the nasopalatine region in human fetuses and its association to pathologies.

UNLABELLED: The nasopalatine region is composed of structures such as the vomeronasal organ and nasopalatine duct. The nasopalatine duct may provide the communication of the mouth to the nasal cavity in human fetuses and can be obliterated in an adult human. Knowledge on the development of the nasopalatine region and nasopalatine duct in humans is necessary for understanding the morphology and etiopathogenesis of lesions that occur in this region. OBJECTIVE: The aim of the present study was to describe the morphological aspects of the nasopalatine region in human fetuses and correlate these aspects with the development of pathologies in this region. MATERIAL AND METHODS: Five human fetuses with no facial or palatine abnormalities were used for the acquisition of specimens from the nasopalatine region. After demineralization, the specimens were histologically processed. Histological cuts were stained with methylene blue to orient the cutting plane and hematoxylin-eosin for the descriptive histological analysis. RESULTS: The age of the fetuses was 8.00, 8.25, 9.00 and 9.25 weeks, and it was not possible to determine the age in the last one. The incisive canal was observed in all specimens as an opening delimited laterally by the periosteum and connecting oral and nasal cavity. The nasopalatine duct is an epithelial structure with the greatest morphological variation, with either unilateral or bilateral occurrence and total patent, partial patent and islet forms. The vomeronasal organ is a bilateral epithelized structure located alongside the nasal septum above the incisive canal in all the fetuses. CONCLUSIONS: The incisive canal, nasopalatine duct and vomeronasal organ are distinct anatomic structures. The development of nasopalatine duct cysts may occur in all forms of the nasopalatine duct.

Morphological characterization of the nasopalatine region in human fetuses and its association to pathologies

The nasopalatine region is composed of structures such as the vomeronasal organ and nasopalatine duct. The nasopalatine duct may provide the communication of the mouth to the nasal cavity in human fetuses and can be obliterated in an adult human. Knowledge on the development of the nasopalatine region and nasopalatine duct in humans is necessary for understanding the morphology and etiopathogenesis of lesions that occur in this region. Objective The aim of the present study was to describe the morphological aspects of the nasopalatine region in human fetuses and correlate these aspects with the development of pathologies in this region. Material and Methods Five human fetuses with no facial or palatine abnormalities were used for the acquisition of specimens from the nasopalatine region. After demineralization, the specimens were histologically processed. Histological cuts were stained with methylene blue to orient the cutting plane and hematoxylin-eosin for the descriptive histological analysis. Results The age of the fetuses was 8.00, 8.25, 9.00 and 9.25 weeks, and it was not possible to determine the age in the last one. The incisive canal was observed in all specimens as an opening delimited laterally by the periosteum and connecting oral and nasal cavity. The nasopalatine duct is an epithelial structure with the greatest morphological variation, with either unilateral or bilateral occurrence and total patent, partial patent and islet forms. The vomeronasal organ is a bilateral epithelized structure located alongside the nasal septum above the incisive canal in all the fetuses. Conclusions The incisive canal, nasopalatine duct and vomeronasal organ are distinct anatomic structures. The development of nasopalatine duct cysts may occur in all forms of the nasopalatine duct. .

Fanconi's anemia in dentistry: a case report and brief literature review / Anemia de Fanconi em odontologia: relato de caso e breve revisão da literatura

PURPOSE: To present a critical analysis of the dental literature about the oral, skeletal and developmental manifestations associated with Fanconi's anemia (FA) and to describe a clinical case. CASE DESCRIPTION: Patient: male, Caucasian, 18 years-old. At the physical exam, the patient's appearance was roughly that of a 12-year-old child. The oral exam revealed carious lesions, gingivitis, bilateral crossbite and anterior open bite. Several teeth were absent and several primary teeth were present. CONCLUSION: The review of the literature reveals a heterogeneous pattern for the oral manifestations of FA, as observed in the case described in the present report. The most common oral manifestations of the disease are gingivitis, periodontitis, dental agenesis and squamous cell carcinoma.

PROPOSTA: O objetivo deste estudo foi realizar uma análise crítica da literatura considerando as manifestações bucais, esqueléticas e de desenvolvimento associadas à anemia de Fanconi (AF) e apresentar um caso clínico. DESCRIÇÃO DO CASO: Trata-se de um paciente branco, sexo masculino, de 18 anos de idade, com aparência de uma criança de aproximadamente 12 anos de idade. Ao exame bucal observaram-se lesões de cárie, gengivite, mordida cruzada bilateral e mordida aberta anterior. Vários dentes permanentes estavam ausentes e muitos dentes decíduos ainda estavam presentes. CONCLUSÃO: A revisão crítica da literatura revelou um padrão heterogêneo com relação às manifestações bucais da AF, como observado no caso clínico descrito. As manifestações bucais mais comuns da doença são gengivite, periodontite, agenesia dental e carcinoma de células escamosas.