Recall evaluations to assess long-term healing are important. Some failures after surgery are evidenced only by radiographic findings. A I-year follow-up is generally a good indicator. If, after 1 year, radiographic evidence shows no decrease in lesion size or lesion size increases, it generally indicates a failure and persistent inflammation. P’ A decrease in lesion size (indicating hard tissue formation) may lead to complete healing and requires evaluation at 6 to 12 months, Of course, persistent. symptoms , such as pain or swelling (or both), presence of sinus tract deep probing defects, or other adverse
findings would also indicate failure. Healing scar tissue after surgery occurs primarily in the maxillary (Fig. 17-29). This is unusual and has a unique radiogr, lphic appearance with an irregular ‘distinct outline. etten separated from the root end. Healing by car tissue considered tobe a successful outcome.