Regulatory barriers to dental anesthesia services for special populations.

AIMS: Sedation and general anesthesia are necessities for the treatment of many individuals within special populations such as those with physical and intellectual disabilities, fear/anxiety, or individuals requiring extensive procedures. This study aims to discover regulatory factors that may be contributing to the limited access to anesthesia services provided by dentist anesthesiologists. METHODS AND RESULTS: The study included an online survey completed by self-reported dentist anesthesiologists with 2 or more years of formal anesthesia training. The survey was distributed at the April 2019 American Society of Dentist Anesthesiologists national meeting in Chicago. Participants responded to questions regarding the effect of specific state regulations on decisions to practice in a particular state and how such regulations influenced patient safety and barriers to care. Rules and regulatory restrictions on the mobility of dentist anesthesiologist equipment/supplies and additional state narcotic transportation regulations were deemed statistically significant in failing to improve safety. Requiring airway and sedation training for a facility's provider and staff were not barriers to care. Rules and regulations were not a factor to establishing clinical practice in one state over another state. CONCLUSION: Individuals and organizations responsible for influencing the regulatory environment of anesthesia services should improve regulations to facilitate the mobility of dentist anesthesiologists.

Favorable Safety Experience of Local Dental Anesthesia in ICD Recipients with Cardiac Channelopathies

Abstract Background Dental anesthetic management in implantable cardioverter defibrillator (ICD) recipients with cardiac channelopathies (CCh) can be challenging due to the potential risk of life-threatening arrhythmias and appropriate ICD therapies during procedural time. Objectives The present study assessed the hypothesis that the use of local dental anesthesia with 2% lidocaine with 1:100,000 epinephrine or without a vasoconstrictor can be safe in selected ICD and CCh patients, not resulting in life-threatening events (LTE). Methods Restorative dental treatment under local dental anesthesia was made in two sessions, with a wash-out period of 7 days (cross-over trial), conducting with a 28h - Holter monitoring, and 12-lead electrocardiography, digital sphygmomanometry, and anxiety scale assessments in 3 time periods. Statistical analysis carried out the paired Student's t test and the Wilcoxon signed-rank test. In all cases, a significance level of 5% was adopted. All patients were in stable condition with no recent events before dental care. Results Twenty-four consecutive procedures were performed in 12 patients (9 women, 3 men) with CCh and ICD: 7 (58.3%) had long QT syndrome (LQTS), 4 (33.3%) Brugada syndrome (BrS), and 1 (8.3%) Catecholaminergic polymorphic ventricular tachycardia (CPVT). Holter analysis showed no increased heart rate (HR) or sustained arrhythmias. Blood pressure (BP), electrocardiographic changes and anxiety measurement showed no statistically significant differences. No LTE occurred during dental treatment, regardless of the type of anesthesia. Conclusion Lidocaine administration, with or without epinephrine, can be safely used in selected CCh-ICD patients without LTE. These preliminary findings need to be confirmed in a larger population with ICD and CCh.

Lingual supplementation may not be required after articaine buccal infiltration anesthesia for lower molar extraction: a clinical comparative study / La suplementación lingual opcional después de la anestesia por infiltración bucal con articaína para la extracción de molares inferiores: un estudio clínico comparativo

Purpose: To investigate the anesthetic effectiveness of buccal infiltration (BI) versus buccal plus lingual infiltration (BI+LI) of 4% articaine for intra-alveolar extraction of erupted mandibular molar teeth. Material and Methods: Eighty patients were included in this prospective clinical study. They were randomly divided into 1 of 2 equal groups: the 1st group received BI of 4% articaine 1.8 ml and LI of 0.5 ml, while the 2nd group received 4% articaine 1.8 ml BI plus 0.5 ml LI of normal saline. Another 1.8 ml articaine BI was given if initial anesthesia was inadequate. Outcome variables included pain, which was rated by patients at 3 intervals using visual analogue scale, and lingual anesthesia and patients' satisfaction which were measured using 5-score verbal rating scale. Data analyses used were descriptive statistics, t test, χ2 test, and Pearson's correlation coefficient. P-value value less than 0.05 was considered significant. Results: There were 46 females and 34 males and the mean age was 35.3 years. All outcome variables were comparable between the two study groups (p˃0.05). Anesthesia was successful in 78% and 88% of cases in the (BI) and (BI+LI) groups respectively with no significant difference (p=0.2392). The mean articaine volume used was 2.5 ml and 2.87 ml respectively without significant difference (p=0.090). Conclusion: The anesthetic efficacy of (BI) alone and (BI+LI) of 4% articaine was comparable. When given in an adequate dose, articaine (BI) alone could be justified as an anesthetic option for the intra-alveolar extraction of mandibular molar teeth.

Objetivo: Investigar la efectividad anestésica de la infiltración bucal (BI) versus la infiltración bucal más lingual (BI+LI) de articaína al 4% para la extracción intraalveolar de molares mandibulares erupcionados. Material y Métodos: Ochenta pacientes fueron incluidos en este estudio clínico prospectivo. Se dividieron aleatoriamente en 1 de 2 grupos iguales: el primer grupo recibió BI de articaína al 4% 1,8 ml y LI de 0,5 ml, mientras que el segundo grupo recibió articaína al 4% 1,8 ml BI más 0,5 ml LI de solución salina normal. Se administró otro BI de articaína de 1,8 ml si la anestesia inicial era inadecuada. Las variables de resultado incluyeron el dolor, que los pacientes calificaron en 3 intervalos mediante una escala analógica visual, y la anestesia lingual y la satisfacción de los pacientes, que se midieron mediante una escala de calificación verbal de 5 puntos. Los análisis de datos utilizados fueron estadística descriptiva, prueba t, prueba χ2 y coeficiente de correlación de Pearson. Se consideró significativo el valor del valor de pinferior a 0,05. Resultados: Hubo 46 mujeres y 34 hombres y la edad media fue de 35,3 años. Todas las variables de resultado fueron comparables entre los dos grupos de estudio (p=0,05). La anestesia fue exitosa en el 78% y 88% de los casos en los grupos (BI) y (BI+LI) respectivamente sin diferencia significativa (p=0,2392). El volumen medio de articaína utilizado fue de 2,5 ml y 2,87 ml respectivamente sin diferencia significativa (p=0,090). Conclusión: La eficacia anestésica de (BI) solo y (BI+LI) de articaína al 4% fue comparable. Cuando se administra en una dosis adecuada, la articaína (BI) sola podría estar justificada para la extracción intraalveolar de molares mandibulares.

Complicaciones asociadas a la anestesia bucal: diagnóstico y manejo / Complications associated with oral anesthesia: diagnosis and management

La seguridad en el uso de los anestésicos locales y de los diferentes abordajes anestésicos en odontología, hacen que la práctica de la anestesia dental sea considerada segura. Los autores reportan las diferentes complicaciones inherentes al uso de la anestesia dental y las consideradas sistémicas, describiendo en cada una de ellas sus características, signos, síntomas y estrategias para solventarlas. (AU)

The safety in the use of local anesthetics and the different anesthetic approaches in dentistry make the practice of dental anesthesia considered safe. The authors report the different complications inherent to the use of dental anesthesia and those considered systemic, describing in each of them their characteristics, signs, symptoms and strategies to solve them. (AU)

A comparative analysis between atraumatic and conventional anesthetic techniques in surgical removal of upper third molars / Análise comparativa entre a técnica anestésica atraumática e convencional em cirurgia para remopao dos terceiros molares superiores

ABSTRACT Pain control is essential in dental practice, and can be accomplished through various techniques. This study seeks to compare atraumatic and conventional anesthetic techniques, applied during surgeries to remove upper third molars. The endpoints evaluated were pain indices, patient satisfaction and anesthetic efficacy. A random parallel split-mouth clinical trial was conducted with 14 patients. Group A received atraumatic anesthesia without a needle (Comfort-in®) and group B received conventional anesthesia by blocking the posterior superior alveolar nerve (PSAN) and Greater Palatine Nerve (GPN). A Visual Analogue Scale (VAS) was used to assess pain. A significantly (p<0.001) lower perception ofpain was observed among individuals who received the atraumatic technique. In 71% of cases, it was necessary to supplement the anesthesia during the procedure. Even considering the need for additional anesthesia, the Comfort-in® technique was more accepted by patients with regard to pain perception than the conventional manual technique.

RESUMO O controle da dor é fundamental na prática odontológica, po-dendo ser feito a partir de várias técnicas. Este estudo visa comparar as técnicas anestésicas atraumática e convencional, aplicadas durante cirurgias para remover terceiros molares superiores. Os pontos avaliados foram índice de dor, satisfaqao do paciente e eficácia anestésica. Um ensaio clínico randomi-zado, paralelo, boca dividida, foi conduzido com 14 participantes. O grupo A recebeu anestesia atraumática sem agulha (Comfort-in®) e o grupo B anestesia convencional por meio de bloqueio do nervo alveolar superior posterior (NASP) e nervo palatino maior (NPM). Uma Escala Visual Analógica (EVA) foi utilizada para avaliar a dor. Uma significativa (p<0,001) menor percepção de dor entre os individuos que receberam a técnica atraumática foi observada. Em 71% dos casos, fez-se necessària a complementação da anestesia durante a realiza-ção do procedimento. Mesmo considerando a necessidade de anestesia adicional, a técnica empregando o sistema Comfort-in® teve maior aceitação dos pacientes quando comparado à técnica manual convencional, no que se refere a percepção de dor, ainda que considerando a necessidade de complementação da anestesia.

A comparative analysis between atraumatic and conventional anesthetic techniques in surgical removal of upper third molars.

Pain control is essential in dental practice, and can be accomplished through various techniques. This study seeks to compare atraumatic and conventional anesthetic techniques, applied during surgeries to remove upper third molars. The endpoints evaluated were pain indices, patient satisfaction and anesthetic efficacy. A random parallel split-mouth clinical trial was conducted with 14 patients. Group A received atraumatic anesthesia without a needle (Comfort-in®) and group B received conventional anesthesia by blocking the posterior superior alveolar nerve (PSAN) and Greater Palatine Nerve (GPN). A Visual Analogue Scale (VAS) was used to assess pain. A significantly (p<0.001) lower perception of pain was observed among individuals who received the atraumatic technique. In 71% of cases, it was necessary to supplement the anesthesia during the procedure. Even considering the need for additional anesthesia, the Comfort-in® technique was more accepted by patients with regard to pain perception than the conventional manual technique.

O controle da dor é fundamental na prática odontológica, podendo ser feito a partir de várias técnicas. Este estudo visa comparar as técnicas anestésicas atraumática e convencional, aplicadas durante cirurgias para remover terceiros molares superiores. Os pontos avaliados foram índice de dor, satisfação do paciente e eficácia anestésica. Um ensaio clínico randomizado, paralelo, boca dividida, foi conduzido com 14 participantes. O grupo A recebeu anestesia atraumática sem agulha (Comfort-in®) e o grupo B anestesia convencional por meio de bloqueio do nervo alveolar superior posterior (NASP) e nervo palatino maior (NPM). Uma Escala Visual Analógica (EVA) foi utilizada para avaliar a dor. Uma significativa (p<0,001) menor percepção de dor entre os indivíduos que receberam a técnica atraumática foi observada. Em 71% dos casos, fez-se necessária a complementação da anestesia durante a realização do procedimento. Mesmo considerando a necessidade de anestesia adicional, a técnica empregando o sistema Comfort- in® teve maior aceitação dos pacientes quando comparado à técnica manual convencional, no que se refere a percepção de dor, ainda que considerando a necessidade de complementação da anestesia.

Can dental anesthesia lead to death? Crime investigation report / Anestesia odontológica pode levar à morte? Relato de investigação criminal

Emergency situations that may lead to the death of an individual, even when there is no cause directly related to the treatment, occur with certain frequency in dental offices. The purpose of this study was to report a case that involved an inquiry and police investigation related to the death of a female patient after the injection of two ampoules of 2% lidocaine anesthetic for dental treatment. The patient died despite assistance given by the professional and by SAMU (Urgent Mobile Medical Service). The legal authorities inquired into the possibility that the amount of anesthetic may have caused the patient's death. However, it was proven that the amount of anesthesia was adequate, and the recommendation of the Public Prosecutor's Office was for closure of the case because of lack of evidence justifying occurrence of the crime

Situações de emergência que podem levar à morte de um indivíduo, mesmo quando não há causa diretamente relacionada ao tratamento, ocorrem com certa frequência nos consultórios odontológicos. O objetivo deste estudo foi relatar um caso que envolveu uma investigação e um inquérito policial relacionada à morte de uma paciente do sexo feminino após a injeção de duas ampolas do anestésico lidocaína a 2% para a realização de tratamento odontológico. A paciente faleceu apesar da assistência prestada pelo profissional e pelo SAMU (Serviço de Atendimento Móvel de Urgência). As autoridades investigaram a possibilidade de que a quantidade de anestésico poderia ter causado a morte do paciente. No entanto, foi comprovado que a quantidade de anestesia era adequada e a recomendação do Ministério Público foi de encerramento do caso devido à falta de evidências que justificassem a ocorrência do crime

Failure rate of pterygomandibular block in lower third molar extraction procedures / Taxa de falha do bloqueio pterigomandibular nos procedimentos de extração do terceiro molar inferior / Tasa de falla del bloqueo pterigomandibular en los procedimientos de extracción del tercer molar inferior

The aim of this study was to evaluate the anaesthetic failure rate of the pterygomandibular technique with an inferior alveolar nerve block in lower third molar extraction procedures. Materials and Methods: A total of 67 healthy patients (men and women, aged between 18­35 years) requiring third molar extractions were selected from the Discipline of Surgery, of the Araçatuba Dental School. The anaesthetic technique utilised was a pterygomandibular block using 2% mepivacaine hydrochloride with epinephrine 1:100,000 (Mepivalem®) in a maximum standardised amount of three tubes (5.4 ml) per procedure (performed by the same operator). Surgical procedures were initiated after confirming the sensation of anaesthesia in the area anesthetised at the inferior alveolar nerve. Painful symptoms were recorded during surgery. Results: In total, 117 surgical procedures, i.e., 114 exodontias and three coronectomies, were performed. During surgical procedures, four patients reported pain during manoeuvres of odontosection, representing an anaesthetic failure rate of 3.41%. Alternative techniques utilised in these four patients involved milohioideo nerve, intraligamentaria, and intrapulpal anaesthesia. Conclusion: The success of inferior alveolar nerve block anaesthesia is difficult to predict due to large anatomical variations, and it is difficult to observe via diagnostic means. The relatively low percentage of anaesthetic failure reported in this study may be related to the number of procedures performed(AU)

O objetivo deste estudo foi avaliar a taxa de falha anestésica da técnica pterigomandibular com bloqueio do nervo alveolar inferior em procedimentos de extração do terceiro molar inferior. Material e Método: um total de 67 pacientes saudáveis (homens e mulheres, com idade entre 18-35 anos) que requeriam extrações do terceiro molar foram selecionados da Disciplina de Cirutgia da Faculdade de Odontologia de Araçatuba. A técnica anestésica utilizada foi um bloqueio pterigomandibular usando cloridrato de mepivacaína a 2% com epinefrina 1: 100,000 (Mepivalem®) em uma quantidade máxima padronizada de três tubos (5,4 ml) por procedimento (realizado pelo mesmo operador). Os procedimentos cirúrgicos foram iniciados após confirmação da sensação de anestesia na área anestesiada no nervo alveolar inferior. Sintomas dolorosos foram registrados durante a cirurgia. Resultados: No total, foram realizados 117 procedimentos cirúrgicos, isto é, 114 exodontias e três coronectomias. Durante os procedimentos cirúrgicos, quatro pacientes relataram dor durante as manobras de odontossecção, representando uma taxa de falha anestésica de 3,41%. As técnicas alternativas utilizadas nesses quatro pacientes envolveram nervo milohioideo, intraligamentar e anestesia intrapulpar. Conclusão: o sucesso da anestesia com bloqueio do nervo alveolar inferior é difícil de prever devido a grandes variações anatômicas e é difícil de observar por meio de meios diagnósticos. A porcentagem relativamente baixa de falha anestésica relatada neste estudo pode estar relacionada ao número de procedimentos realizados(AU)

El objetivo de este estudio fue evaluar la tasa de falla anestésica de la técnica pterigomandibular con bloqueo del nervio alveolar inferior en procedimientos de extracción del tercer molar inferior. Material y método: un total de 67 pacientes sanos (hombres y mujeres, con edad entre 18-35 años) que requerían extracciones del tercer molar fueron seleccionados de la Disciplina de Cirutía de la Facultad de Odontología de Araçatuba. La técnica anestésica utilizada fue un bloqueo pterigomandibular usando clorhidrato de mepivacaína al 2% con epinefrina 1: 100,000 (Mepivalem®) en una cantidad máxima estandarizada de tres tubos (5,4 ml) por procedimiento (realizado por el mismo operador). Los procedimientos quirúrgicos se iniciaron después de confirmar la sensación de anestesia en el área anestesiada en el nervio alveolar inferior. Los síntomas dolorosos se registraron durante la cirugía. Resultados: En total, se realizaron 117 procedimientos quirúrgicos, es decir, 114 exodontias y tres coronectomías. Durante los procedimientos quirúrgicos, cuatro pacientes relataron dolor durante las maniobras de odontosección, representando una tasa de falla anestésica del 3,41%. Las técnicas alternativas utilizadas en estos cuatro pacientes involucraron nervio milohioideo, intraligamentar y anestesia intrapulpar. Conclusión: el éxito de la anestesia con bloqueo del nervio alveolar inferior es difícil de predecir debido a grandes variaciones anatómicas y es difícil de observar por medio de medios diagnósticos. El porcentaje relativamente bajo de falla anestésica reportada en este estudio puede estar relacionado al número de procedimientos realizados(AU)

A Nitrous-Oxide Pioneer Peddles His Own Dentifrice: "Dr Colton's Vegetable Dentonic".

During the latter half of the six-year long "Panic of 1873," nitrous-oxide pioneer G.Q. Colton developed, advertised, and sold his dentifrice, "Dr Colton's Vegetable Dentonic" to supplement his dental anesthetic enterprise.

Predicting intraoperative pain in emergency endodontic patients: clinical study

Abstract This prospective observational study sought to investigate the incidence of intraoperative pain (IOP) among emergency endodontic patients and to construct an IOP prediction model that includes preoperative pain level (PPL). All patients who underwent emergency endodontic treatment at Gazi University, Ankara, Turkey, during the spring term of 2016 were considered for inclusion in the study. Demographic and clinical variables and PPL were recorded. Local anesthesia was provided to all patients before beginning routine endodontic treatment. IOP was defined as the condition of requiring supplementary anesthesia before the working length was established and exhibiting persistent moderate or severe pain despite supplementary anesthesia. Data from 85% and 15% of 435 patients (178 men, 257 women; mean age: 35 years) were used to develop predictive models by multiple logistic regression analysis and to test external validity of the models, respectively. Two multiple logistic regression models achieved good model fits. Model 1 included age, pulpal diagnosis, and arc (p < 0.05). In addition to these variables, Model 2 included periapical diagnosis and PPL (p < 0.15). Models 1 and 2 showed accuracies of 0.76 and 0.75, sensitivities of 0.74 and 0.77, and specificities of 0.76 and 0.74, respectively for the modeling data (internal validity), and accuracies of 0.82 and 0.80, sensitivities of 0.83 and 0.67, and specificities of 0.81 and 0.81, respectively for the control data (external validity). The IOP incidence was 10.3%. IOP in patients undergoing emergency endodontic treatment can be successfully predicted by using models that account for demographic and clinical variables, including PPL.

Precarious Distraction and Carious Extraction: Nitrous Oxide during the "Second World Billiards Tournament".

During the 1879 Brunswick & Balke World Billiards Tournament, Manager FC Newhall had a tooth extracted under nitrous oxide administered by GQ Colton. The dental extraction occurred at the tournament site, New York City's Cooper Institute.

From Dental to Mental Institutions: Asylum-Bound Dentist Zacheus Rogers Oxygenates Nitrous Oxide.

American dentist Zacheus Rogers taught surgeon Edmund Andrews-and indirectly anesthesia pioneers SJ Hayes and FW Hewitt-to oxygenate anesthetics. Ironically, Rogers may have himself suffered neurologic damage by failing to oxygenate the nitrous oxide that he is speculated to have abused personally.

Local anaesthetics combined with vasoconstrictors in patients with cardiovascular disease undergoing dental procedures: systematic review and meta-analysis protocol.

INTRODUCTION: The use of vasoconstrictors combined with local anaesthetics (LAs) in dentistry for patients with cardiovascular disease (CVD) is still controversial in the scientific literature. It raises concerns regarding the possibility of transient episodes, triggering negative cardiovascular outcomes. METHOD/DESIGN: Trials eligible for our systematic review will enrol patients with CVD who have undergone dental treatments carried out with the use of LAs by comparing two arms: LAs with vasoconstrictors and LAs without vasoconstrictors. The research will be conducted in the electronic databases, namely Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, Healthstar (via Ovid), Cumulative Index to Nursing and Allied Health Literature and Web of Science, from their inception to December 2017, without any restrictions in terms of language and status of publication. A team of reviewers will independently assess titles, abstracts and complete text to determine eligibility. For eligible studies, the same reviewers will perform data extraction and evaluate the risk of bias in the selected articles. The selected outcomes comprise death, mortality by a specific cause, stroke, acute myocardial infarction, hospitalisation, pain, bleeding, arrhythmias, ischaemic episodes, anxiety, adverse effects, changes in blood pressure, changes in heart rate, anxiety and results obtained via oximetry. Whenever possible, we will conduct a meta-analysis to establish the effects of LAs with and without vasoconstrictors in the patients with CVD, and the overall quality of evidence for each outcome will be determined using the Grading of Recommendations Assessment, Development and Evaluation classification system. ETHICS AND DISSEMINATION: Ethics committee approval was not necessary because this is a protocol of systematic review. This systematic review will be submitted for presentation at conferences and for publication in a peer-reviewed journal. Our review will assess the risks of cardiovascular events when using LAs with and without vasoconstrictors in patients with CVD, focusing on important clinical outcomes. PROSPERO REGISTRATION NUMBER: CRD42016045421.

Development of a Web-Based Nationwide Korean Pediatric Dental Sedation Registry.

OBJECTIVE: Finding a balance between sedation efficacy and safety remains an ongoing challenge. In children, the risk of sedation-related complications is relatively high. It is of utmost importance to determine the factors related to improved overall sedation outcomes. However, most previous reports have been based on small samples at single institutions. The Korean Academy of Pediatric Dentistry (KAPD) developed a Korean Pediatric Dental Sedation Registry using a web-based platform. STUDY DESIGN: Specialists in pediatric dental sedation selected the itemized list included within the registry through an extensive literature review. The web-based registry was built into the KAPD homepage to facilitate easy access to the sedation data. All teaching and university hospitals agreed to participate in the Korean Pediatric Dental Sedation Registry. CONCLUSION: This is the first attempt to collect sedation data on a nationwide scale in the field of pediatric dentistry. The sedation database established with the registry may facilitate standardizing and improving pediatric dental sedation clinical practices.

Intrapocket topical anesthetic versus injected anesthetic for pain control during scaling and root planing in adult patients: Systematic review and meta-analysis.

BACKGROUND: In this systematic review and meta-analysis, the authors evaluated the pain during scaling and root planing with use of topical anesthetic versus that with the use of injected anesthetic in adult patients. TYPES OF STUDIES REVIEWED: The authors searched 6 databases for randomized clinical trials in which the investigators compared the clinical effectiveness of intrapocket and injectable anesthetics. The primary outcome was the risk of developing pain or intensity of pain. Quality assessment followed the guidelines from the Cochrane Collaboration's risk-of-bias tool. The authors performed meta-analyses on studies considered at low and unclear risk of bias. RESULTS: From 976 articles identified, 6 remained in the qualitative synthesis (4 at low and 2 at unclear risk of bias). Injected anesthetic produced lower pain intensity than did anesthetic gel (P = .03) and required less rescue anesthetic than did topical anesthetic (P < .0001). There was no difference in patient preference (P = .09). CONCLUSIONS AND PRACTICAL IMPLICATIONS: Injected anesthetic decreased the intensity of pain and the need for rescue anesthetic during scaling and root planing, but the risk of developing pain yielded similar results for injected and topical anesthetics.

Factores de riesgo para la falla anestésica en la mandíbula / Risk factors for anesthesia failure in the mandible

La anestesia local es un procedimiento común en el trabajo diario del odontólogo, sin em-bargo, existen múltiples factores que afectan la efectividad de este procedimiento. La correcta identifica-ción sobre las causas de la falla es primordial en el momento de tomar las medidas necesarias para lograr el éxito anestésico. La mayoría de los problemas en la anestesia de la mandíbula se deben al limitado acceso y las variantes anatómicas tales como: Nervio Dentario Inferior Bífido, Foramen Retromolar, Agujero Men-toniano Accesorio, Inervaciones Accesorias e Inervaciones Cruzadas. Por otro lado, la inflamación aumenta la absorción del anestésico, disminuyendo su concentración en el sitio de acción. Se debe considerar que las diversas técnicas disponibles para la anestesia mandibular no garantizan un 100% de efectividad, además cada una de ellas presenta indicaciones y complicaciones particulares. Fenómenos psicológicos como la ansiedad y el miedo al dentista también puede incrementar la percepción del dolor. El clínico debe manejar todos los aspectos que afectan negativamente los procedimientos anestésicos en odontología

Local anesthesia is a common procedure in the daily dental practice, however, there are multiple factors affecting the effectiveness of this procedure. Correct identification of the causes of the failure is essential at the time of taking the necessary measures to achieve the anesthetic success. Most problems in the anesthesia of the mandible are due to limited access and anatomical variants, such as: bifid Inferior Alveolar Nerve, Retromolar Foramen, Accessory Mental Foramen, Accessory innervations and Cross Innervations. Moreover, inflammation increases the absorption of anesthetic, reducing its concentration at the site of action. The several techniques available for mandibular anesthesia does not guarantee 100% effectiveness, plus each individual techniques presents indications and complications. Psychological phenomena such as anxiety and fear to the dentist can also increase the perception of pain. The clinician should all aspects involved but also the psychological variables that negatively affect dental patient care in anesthetic procedures

Radiographic and computed tomography monitoring of a fractured needle fragment in the mandibular branch.

Some complications can arise with the usage of local anesthesia for dental procedures, including the fracture of needles in the patient. This is a rare incident, usually caused by the patient's sudden movements during anesthetic block. Its complications are not common, but can include pain, trismus, inflammation in the region, difficulty in swallowing, and migration of the object, which is the least common but has the ability to cause more serious damage to the patient. This report describes a case in which, after the fracture of the anesthetic needle used during alveolar nerve block for exodontia of the left mandibular third molar, the fragment moved significantly in the first 2 months, before stabilizing after the third month of radiographic monitoring.

Anaesthesia in Dental Medicine with Local Infiltrative Anaesthetic Technique Versus Diploe Anaesthesia Delivery Systems: Efficacy and Behaviour, an Experimental Study.

INTRODUCTION: This study aimed to compare the analgesic efficacy and the influence of local infiltrative anesthesia techniques, with diploe anesthesia, on the cardiac rhythmMaterial and Methods: We selected 32 healthy volunteers who were given both anaesthetic techniques on tooth 1.4 (0.45 mL of lidocaine with adrenaline, 1:80 000). In the first phase, the volunteers underwent periapical infiltrative anaesthesia. In the second phase, diploe anaesthesia was performed with a QuickSleeper® device. The parameters analysed were pulp response to the electrical test and heart rate of the participants. These parameters were evaluated on five different occasions: before anaesthesia (t0), immediately after anaesthesia (t1), 15 minutes later (t15), 30 minutes later (t30) and 60 minutes later (t60). Statistical analysis of the data was performed using SPSS 2.0 software, with α = 0.05. RESULTS: With the diploe anaesthesia, a level of analgesia was obtained faster. There was a slight increase in heart rate soon after administration of diploe anaesthesia, which stabilized after t15 of the procedure. This technique still proved to be painless. CONCLUSION: Diploe anaesthesia demonstrated better results in terms of analgesia than the infiltrative anaesthesia. It has been reported to be easy, safe and an effective procedure that allows anaesthesia in almost all clinical situations. This approach may offer particular advantages for endodontic therapy, providing greater comfort for the patient.

Introdução: Este estudo teve como objetivo comparar a eficácia analgésica e a influência no ritmo cardíaco das técnicas de anestesia infiltrativa local, com a anestesia diploica. Material e Métodos: Foram selecionados 32 voluntários, saudáveis, aos quais foram administradas ambas as técnicas anestésicas no dente 1.4. (0,45 mL de lidocaína com adrenalina, 1:80 000). Numa primeira fase os voluntários foram sujeitos a anestesia infiltrativa periapical e numa segunda fase foi realizada anestesia diploica, com um dispositivo QuickSleeper®. Os parâmetros analisados foram a resposta pulpar ao teste elétrico e o ritmo cardíaco dos participantes. Estes parâmetros foram avaliados nos tempos: antes da anestesia (t0), logo após a anestesia (t1), 15 minutos depois (t15), 30 minutos depois t(30) e 60 minutos depois (t60). Foi feita análise estatística dos dados obtidos, através do software SPSS 2.0, com α = 0,05. Resultados: Com a anestesia diploica o estado de analgesia foi atingido de forma mais rápida. Registou-se um ligeiro aumento do ritmo cardíaco logo após a administração da anestesia diplóica, que estabilizou após t15 do procedimento. Esta técnica revelou ainda ser indolor. Conclusão: A anestesia diploica demonstrou melhores resultados em termos de analgesia do que o método convencional. Revelou ser um procedimento fácil, seguro e eficaz, que permite anestesiar quase todas as situações clínicas. Esta abordagem apresenta vantagens particularmente para a terapêutica endodôntica, proporcionando maior conforto para o doente.

Radiographic and computed tomography monitoring of a fractured needle fragment in the mandibular branch

Some complications can arise with the usage of local anesthesia for dental procedures, including the fracture of needles in the patient. This is a rare incident, usually caused by the patient's sudden movements during anesthetic block. Its complications are not common, but can include pain, trismus, inflammation in the region, difficulty in swallowing, and migration of the object, which is the least common but has the ability to cause more serious damage to the patient. This report describes a case in which, after the fracture of the anesthetic needle used during alveolar nerve block for exodontia of the left mandibular third molar, the fragment moved significantly in the first 2 months, before stabilizing after the third month of radiographic monitoring.