there are many ways to crush the tooth, I was not clear if are you interested in crushing the whole tooth or certain parts, because these days many scientists are interested in dentine only because it has an osteogenic induction property and has been used as a replacement for bone graft and is cost-effective in that you can use the extracted tooth of the patient free. someone suggested a sectioning machine I use sectioning machines these are good only for one thing an examination of the tooth since we can reach sections small as 7 microns this is not crushing and I don't think that is what you want, I have included a URL showing you all the papers published on crushing the tooth and they start by simple diamond bur till you reach a grinding using a mortar and pestle, also it tells you if you want the dentine or cementum and how to separate organic from inorganic these are all in many papers listed. i also know that in the USA there is a machine called smart tooth grinder made by KOMETA bioinc Cresskill ,NJ,Usa they sell their machine here is their web site https://www.kometabio.com/
I have no interest at all in that company and never contacted them.
so depending on the money you have you can buy this machine but i personally prefer the cheap methods where I can use a diamond bur and use organic and inorganic solvents to get what I want here is a picture of the American machine
Dr.K.A.Galil.Professor of Medicine and Professor of Dentistry DDS.,D.Oral & Maxillofacial Surgery ,PH.D,FAGD.,FADI.,Cert.Periodontist(Uof Michigan) (Royal College Dent Surg.Ont) Departments of Periodontics,Orthodontics and Clinical Anatomy Schulich School Of Medicine and Dentistry. University of Western Ontario, London,Ontario.