• Hypothesis:

  • X-tip intraosseous is an effective supplementary injection in mandibular hot teeth as well as Periodontal Ligament (PDL) injection

• Purposes:

  • Comparing the anesthetic efficacy of X-tip intraosseous and PDL injection in mandibular hot teeth which had not been anesthetized after 3.6 ml Infra Alveolar Nerve Block

• Methods and Materials:

  • forty patients with mandibular hot molar or second premolar which had not been anesthetized after 3.6 ml inferior alveolar nerve block injection will be selected for this study

• Randomization:

  • All patients will be randomly divided into two groups as follows:

    1. X-tip intraosseous injection will be used as supplementary
    2. PDL injection will be used as supplementary

• Anesthetic evaluation:

  • For anesthetic evaluation we will use Visual Analog Scale (VAS)

Inclusion Criteria:

• Mandibular Molars and second premolars with Acute Irreversible Pulpitis
• None of the teeth selected should have been anesthetized following 3.6 ml Lidocaine block injection

Exclusion Criteria:

• Unhealthy patients
• Teeth which were anesthetized following 3.6 ml nerve block injection
• Patients who did not have any signs of lip anesthesia following 3.6 ml injection