OBJECTIVES: Achieving adequate anesthesia with inferior alveolar nerve blocks (IANB) is of great importance during dental procedures. The aim of the present study was to assess the success rate of two anesthetic agents (bupivacaine and lidocaine) for IANB when treating teeth with irreversible pulpitis. MATERIALS AND METHODS: Sixty volunteer male and female patients who required root canal treatment of a mandibular molar due to caries participated in the present study. The inclusion criteria included prolonged pain to thermal stimulus but no spontaneous pain. The patients were randomly allocated to receive either 2% lidocaine with 1:80,000 epinephrine or 0.5% bupivacaine with 1:200,000 epinephrine as an IANB injection. The sensitivity of the teeth to a cold test as well as the amount of pain during access cavity preparation and root canal instrumentation were recorded. Results were statistically analyzed with the Chi-Square and Fischer's exact tests. RESULTS: At the final step, fifty-nine patients were included in the study. The success rate for bupivacaine and lidocaine groups were 20.0% and 24.1%, respectively. There was no significant difference between the two groups at any stage of the treatment procedure. CONCLUSIONS: There was no difference in success rates of anesthesia when bupivacaine and lidocaine were used for IANB injections to treat mandibular molar teeth with irreversible pulpitis. Neither agent was able to completely anesthetize the teeth effectively. Therefore, practitioners should be prepared to administer supplemental anesthesia to overcome pain during root canal treatment.
Anesthesia ; Anesthetics* ; Bupivacaine* ; Dental Pulp Cavity ; Epinephrine ; Female ; Humans ; Lidocaine* ; Male ; Mandibular Nerve* ; Molar ; Pulpitis* ; Tooth* ; Volunteers

OBJECTIVES: Achieving adequate anesthesia with inferior alveolar nerve blocks (IANB) is of great importance during dental procedures. The aim of the present study was to assess the success rate of two anesthetic agents (bupivacaine and lidocaine) for IANB when treating teeth with irreversible pulpitis. MATERIALS AND METHODS: Sixty volunteer male and female patients who required root canal treatment of a mandibular molar due to caries participated in the present study. The inclusion criteria included prolonged pain to thermal stimulus but no spontaneous pain. The patients were randomly allocated to receive either 2% lidocaine with 1:80,000 epinephrine or 0.5% bupivacaine with 1:200,000 epinephrine as an IANB injection. The sensitivity of the teeth to a cold test as well as the amount of pain during access cavity preparation and root canal instrumentation were recorded. Results were statistically analyzed with the Chi-Square and Fischer's exact tests. RESULTS: At the final step, fifty-nine patients were included in the study. The success rate for bupivacaine and lidocaine groups were 20.0% and 24.1%, respectively. There was no significant difference between the two groups at any stage of the treatment procedure. CONCLUSIONS: There was no difference in success rates of anesthesia when bupivacaine and lidocaine were used for IANB injections to treat mandibular molar teeth with irreversible pulpitis. Neither agent was able to completely anesthetize the teeth effectively. Therefore, practitioners should be prepared to administer supplemental anesthesia to overcome pain during root canal treatment.
Anesthesia ; Anesthetics* ; Bupivacaine* ; Dental Pulp Cavity ; Epinephrine ; Female ; Humans ; Lidocaine* ; Male ; Mandibular Nerve* ; Molar ; Pulpitis* ; Tooth* ; Volunteers

Background: Over the last decade, Iran has experienced a declining birth trend. Identifying the proximate determinants of fertility intentions among married women is informative for population studies. This study aimed to examine the importance of three immediate antecedents of fertility intention. Methods: We invited 1,100 married women to complete a well-validated questionnaire based on the theory of planned behavior (TPB). The sampling framework consisted of visitors attending hospitals in two cities in southeastern Iran. Intention for having children was measured using the item “Do you intend to have a/another child during the next 3 years?” Attitude, subjective norms, and perceived behavioral control were measured using eight, three, and three items, respectively. Structural equation modeling was used to specify the model and to test the predictive ability of the TPB constructs. Results: The response rate was 90.7% (N=998), and the mean±standard deviation age of the respondents was 34.8±7.4 years. More than 50% of the respondents reported intending to have a child in the next 3 years. All three TPB model constructs showed significant associations with fertility intentions. The standardized beta coefficients for attitudes, subjective norms, and perceived behavioral control were 0.74, 0.41, and 0.55, respectively. Conclusion The TPB model showed that psychological mechanisms play an important role in predicting the childbearing intentions of married women in Iran. Of the three TPB constructs, attitude was the strongest predictor of the intention to have a child.