Kindly explain whether periodontal ligament removal is important during tooth extraction.

Hi doctor,

My lateral incisor #7 fractured at the gumline and will likely require a surgical extraction. Also, while a temporary filling was provided after removal of pulp pending a root canal, the root canal was not done for many months due to an insurance lapse, and the tooth became infected as well as surrounding bone. I have read that some dental surgeons advocate for the removal of the periodontal ligament during extraction to facilitate healing and the proliferation of new bone cells, and that this must be done explicitly with a bone burr. I have read that this is common practice for "biologic" dentists and biologic dental surgeons, and uncommon otherwise. My Med-Cal / Denti-Cal providers are not "biologic" dentists.

I have four questions. 1) How important do you think the complete removal of the periodontal ligament really is? 2) If the extraction is surgical vs. simple, is it likely that the ligament would be removed anyway? Perhaps because some extra surrounding bone may need to be removed? 3) If removal of the tendon is not standard practice by the dental surgeon, can I request it and would they know what to do and not be offended?, and finally 4) If an implant is contemplated, would the region of the removed tooth and perhaps some surrounding bone immediately be packed with a bone substitute for socket preservation? Or would the infection need to clear first?