Thanks for your response.
You may want to ask the oral surgeon in the Oral and maxillofacial Surgery section. I don't do any sinus lifts or ridge augmentations so I'm not sure why they would wait unless they felt the chance of success was low.
Yes. Periodontal treatment was completed a year ago. There was not any bleeding on probing.
There is no abscess in the area.
You should ask your dentist in regards to your particular case. It may be that there is an abscess in the area and any other surgical procedure will have a hard time healing, resulting in a lower chance of success