Study groups | Student-administered | Dentist-administered |
---|---|---|
Operator | Students (n = 31) | Dentist (n = 1) |
Subjects | Students (n = 31) | Students (n = 29) |
Injection Techniques | Supraperiosteal Infiltration (first right premolar) (n = 31) Inferior Alveolar Nerve Block (right side) (n = 31) | Supraperiosteal Infiltration (first right and left premolar) (n = 58) Inferior Alveolar Nerve Block (n = 0) |
Injection Methods | Computer-controlled (n = 31):16 IAN-B and 15 Infiltration Conventional (n = 31):15 IAN-B and 16 Infiltration | Computer-controlled (n = 29) Conventional (n = 29) |
Randomization | The injection methods were simply randomized between the two injection techniques (even: computer-controlled /odd: conventional) | The injection methods were simply randomized between the right and left injection sites (even: computer-controlled /odd: conventional) |
Blinding | The students were blinded to the injection methods | The students were blinded to the injection methods |
Split-mouth | Yes | No |