Incomplete anesthesia may allow the patient to experience too much pain. And even with adequate anesthesia, other remaining sensations can be mistaken for pain. Using local anesthesia, the sense of pain should disappear, but the sense of touch usually does not. The anxiety of a patient may also decrease the pain threshold, and the pain may be induced as a consequence. There is no definite evidence that pain from a procedure indicates contact between roots and implants. Adherence to the standard protocols for reducing root injuries during implantation can relieve orthodontists from anxiety regarding root injuries. If the patient feels pain in the lower premolar areas, infiltration anesthesia is especially necessary on the corresponding areas of the lingual side, otherwise block anesthesia of the mandibular alveolar nerve is needed.