Osseous surgery and flap surgery both refer to the same, conventional surgery for treating serious gum disease (periodontitis). Osseous means 'of the bone'. One might call this procedure osseous surgery because the point is to remove bacteria from the root of a tooth and surrounding bone as well as to make the surface of said bones smooth. Smooth bones ensure that bacteria have a hard time moving back in.
One might call this procedure flap surgery because your clinician surgically creates a flap in your gums that they can open in order to get to the bones they hope to clean and smooth.
Osseous/Flap surgery can be thought of as a surgical, deeper cleaning. The reason your clinician will almost always suggest deep cleaning before osseous/flap surgery is because deep cleaning and antibiotics may be able to do the same thing as osseous/flap surgery in a less invasive fashion, but not always. While deep cleaning aims to remove bacteria from below the gum line and smooth the root of your tooth, osseous/flap surgery allows your clinician to see what's going on down there and easily reach the entire infected area. Thus, osseous/flap surgery ensures a deeper, comprehensive cleaning and a disease-free gum.
Osseous/Flap surgery and laser gum surgery are two different ways you can go about addressing gum disease that is resistant to deep cleaning. Generally speaking, LANAP is considered preferable if it is an option because, among other things, it is less invasive and has been found to produce less bleeding and discomfort following the procedure. However, osseous/flap may be the way for you depending on a number of factors.
For one, depending on what your insurance is able to cover, osseous/flap surgery may prove much more cost effective. When it comes down to it, the only way to figure out what course of treatment makes the most sense for you is to consult a periodontist. Here at Dental Implants in the City we will get to know you and explore the pros and cons of any procedure as it relates to your specific situation. Finally, regardless of how you choose to address your gum disease, we will always work with you to develop an aftercare plan that maximizes your comfort and meets your needs.