Covering or substituting teeth with gold or silver ones

Q 8: It is claimed that it is permissible to splint a man's tooth with gold or silver. What is the ruling - provided with evidence from the Qur'an and Sunnah (whatever is reported from the Prophet) - on the permissibility/prohibition on wearing a gold/silver crown?

(Part No. 24; Page No. 71)  A: The basic established principle in words and deed is the prohibition of gold and silver for men as regards drinking from gold or silver vessels or wearing clothes adorned or hemstitched with them and so on, except that which evidence indicates is permissible such welding pots with them or wearing silver rings. Furthermore, there is no evidence on the exception of gold and silver vessels, teeth, noses or crowns from prohibition. Therefore, the basic principle of prohibition remains the same unless necessity calls for otherwise; thereof this becomes permissible due to necessity.May Allah grant us success. May peace be upon our Prophet Muhammad, his family, and Companions.