Help Save My Smile: Abscesses Teeth

My mother had to have her teeth constantly filled, replaced, and bridged, until her 40's when she had only two natural teeth left. My grandmother had to have the last of her teeth pulled around her 50th birthday. Her sister had to have them out in her 30s. My great grandmother around her 40s. The women in my family have a history of bad teeth, which is why I'm afraid for my health right now. I've already had my wisdom teeth removed due to severe decay in spite of my best efforts to maintain cleanliness and health, and another molar followed behind. Now I have another abscessed molar and a large cavity that is causing me intense pain in one of my incisors. My mother has spent upwards of $30,000 on her teeth in her life. I'm not sure what my other female relatives had to spend to repair and eventually remove their teeth. But my teeth are rotting out of my head. I can't afford to keep getting them pulled out, and my fiancé and I want to get married but my health has to take priority. We need help. Please help me. I'm afraid of spending decades suffering and not being able to smile. I need $20,000 to be able to get them all removed and to have All On Four put in. Anything helps.