To report an anatomical variation in maxillary first molars.A case is presented of a molar requiring root-canal treatment that had two palatal roots with distinct canals and foramena at the apical level. Root-canal was performed using mechanical instrumentation NiTi files. An study on extracted second molars same revealed their internal structure. This demonstrates uncommon condition supplements previous reports such cases affecting molars.Clinicians should be aware variations molars. The...

The objective of this study was to determine the effectiveness 0.04 ProFile instruments during removal root fillings.A total 30 single-rooted mandibular canines were divided into three groups. canals accessed and then prepared with a reciprocating automated device nickel-titanium files. Three different techniques obturation used: Thermafil system (group I), thermomechanical compaction II) lateral condensation III). Sealer 26 used in all Two weeks after obturation, fillings removed using...

The prognosis of traumatized teeth in general and avulsed particular depends on prompt appropriate treatment. Management traumatic injuries may be a challenge to the non-specialized dentist, as they occur when dentists are least prepared for it. objective this research was investigate knowledge practitioner about emergency management dental avulsion Curitiba, PR, Brazil. A group 250 professionals were interviewed. questions related how treat teeth. results suggest that level practitioners...

To assess the influence of metallic posts in detection simulated vertical root fractures (VRFs) using following imaging examinations: 2 cone beam CT (CBCT) systems [CBCT1: NewTom(®) 3G (QR Srl, Verona, Italy) and CBCT2: i-CAT Next Generation(®) (Imaging Sciences International, Hatfield, PA)] film digital radiographs. Additionally, orientation fracture line VRFs was evaluated.

The purpose of this study was to evaluate the efficiency ProFile, GT, ProTaper, Race and K3 rotary instruments compared with hand K-files for removal gutta-percha during retreatment. Sixty mandibular premolars were instrumented GT files filled by thermomechanical compaction AH Plus sealer. teeth are randomly divided into 6 groups 10 specimens each. roots split longitudinally, digital images created using a flatbed scanner, areas remaining filling material demarcated Image Tool 1.21 software....

OBJECTIVES: The aim of this study was to evaluate cases dental trauma treated at the specialized center Pontifical Catholic University Paraná, Curitiba, Brazil, during a period 2 years. MATERIAL AND METHODS: A total 647 patients were evaluated and between 2003 2005. Data obtained from each patient tabulated analyzed as gender, age, etiology, time elapsed after injury, diagnosis (type trauma), affected teeth. RESULTS: results revealed that male individuals aged 7 13 years presented highest...

Os dentes molares superiores apresentam uma complexidade anatômica notável em virtude das variações nos canais radiculares. Dentre eles, o segundo molar superior comumente apresenta três raízes, porém a literatura também relata algumas anatômicas incomuns desse elemento dentário. Objetivo: Apresentar um relato de caso clínico descrevendo tratamento endodôntico anatomia incomum do superior. Relato caso: Paciente sexo feminino, 47 anos, compareceu à clínica especialização encaminhada...

O retratamento, uma tentativa de retificar um tratamento endodôntico realizado inadequadamente, está indicado em casos tratamentos insatisfatórios, canais não localizados, lesão periapical persistente, suspeita contaminação por saliva e persistência sintomas. A intervenção cirúrgica é indicada nos que o retratamento se mostra inviável ou falha alguma razão. Objetivo: Relatar caso cirurgia parendodôntica maxila realizada três elementos apresentavam persistente. Relato caso: Paciente...

This study evaluated the cleaning capacity of Profile.04 instruments with different concentrations NaOCl solutions on flattened root canals. Twenty central mandibular incisors were divided into 4 groups: Group I: 0.5% NaOCl; II: 1% III: 5% IV: distilled and deionized water. After chemomechanical preparation, teeth submitted to histological preparation morphometric analysis. Morphometric analysis showed that was significantly more efficient in canal than water, which had lowest levels canals (p<0.01).

Abstract – Crown–root fractures are frequently difficult to treat and have a bad prognosis. To restore the biological space, intentional replantation can be chosen when osteotomy/osteoplasty dental traction not viable. Intentional with tooth rotation consists of extraction, 180° replantation, thus restoring space. After treatment inflammatory resorption calcium hydroxide, endodontic was completed. The patient followed up clinical examination (mobility test, gingival sulcus depth)...

Objective: To analyze possible correlations among tubular dentine cement penetration, adhesiveness and apical leakage in fillings performed with gutta percha an endodontic based on epoxy amine resin. Material Methods: Sixty similar, extracted human mandibular central incisors were irrigated, instrumented filled following the same protocol. First, was quantified by fluid filtration tests. Then, these specimens sectioned for analysis of penetration middle thirds submitted to push-out tests...

To evaluate in vivo the accuracy of Root ZX II (J. Morita) apex locator controlling apical extent rotary instrumentation when using Auto Apical Reverse (AAR) set at levels 0.5, 1.0 and 1.5.Thirty single-rooted premolar teeth scheduled for extraction were divided into three groups (n = 10), according to AAR setting 1.5. The root canals prepared ProTaper (Dentsply Maillefer). After instrumentation, last file used (F3) was manually introduced canal preparation fixed before tooth extraction....

To assess the effect of sodium chloride concentration in fluoridated solutions during electrochemical dissolution fractured rotary endodontic instruments.Two were assessed (solution 1: NaF 12 g L-1 + NaCl 1 , pH = 5.0; and solution 2: 180 5.0) using two tests: ProTaper Universal F1 (PTU F1) instrument polarization test for intracanal PTU fragments mandibular incisors. In first test, sets five instruments separately partially immersed each solution, electrical current was evaluated over 30...

This study evaluated the efficiency of using a single instrument from three different rotary multi-file systems and compared them with that reciprocating single-file for endodontic retreatment by means micro-CT. Sixty extracted canines were prepared size F2 ProTaper Universal file obturated. After 30 days storage at 37ºC 100% humidity, teeth randomly divided into four groups (n=15) based on type used to retreatment: Next (PTN), Gold (PTG), TRUShape 3D (TS), WaveOne (WO). The canals retreated...

Background: Replantation is the most indicated procedure for traumatic dental avulsion, but it invariably results in a greater or lower degree of root resorption. The outcomes these cases can be affected by some well‐known factors. Because studies have shown importance innate and acquired immune response mechanisms involved resorption bone tissues, an endeavor was made to verify if such influence applies Methods: Fifty‐seven avulsed, endodontically treated teeth were assessed Endodontics...

The aim of this in vivo study was to evaluate the correlation between occurrence root resorption avulsed and replanted teeth, extra-alveolar time, possible influence Th2 immunologic profile, represented by patient's atopy its prognosis tooth.This evaluated presence or absence 57 teeth. replantation technique endodontic treatments were performed following International Association Dental Trauma guidelines. Follow-up teeth included monthly clinical radiographic examinations during 1 year....

The aim of this study was to evaluate the effect a calcium hydroxide (CH) dressing on tubular penetration two endodontic sealers, AH Plus (Dentsply Maillefer, Ballaigues, Switzerland) and MTA Fillapex (Angelus, Londrina, Brazil).Seventy-two mandibular premolars with single root canal were prepared ProFile.04 rotary instruments Maillefer) divided into four groups. In groups, an intracanal CH placed for 15 days. obturations performed lateral condensation gutta-percha in combination one tested...