Which one of the following is a common complication associated with resective surgery?

Resective surgery in periodontology is performed to remove or reduce periodontal tissue, often in an effort to eliminate pockets and improve access for oral hygiene. One of the common complications associated with this type of surgery is the development of open embrasures.

Open embrasures occur when there is a space between adjacent teeth, which can happen due to the removal of supporting tissue during the surgical procedure. This can lead to changes in the natural contour of the gum tissue and result in areas that are harder to clean, potentially contributing to food trapping or plaque accumulation. This complication highlights the delicate balance that periodontists must maintain between achieving adequate periodontal health and preserving the aesthetics and function of the dental arch.

In contrast, reduced food impaction and improved root support are not typically complications associated with resective surgery; instead, they may be considered benefits of effective periodontal treatment. Increased healing time may occur due to various factors, but open embrasure formation is a specific and notable complication that can arise from the surgical process itself.