What documentation is needed for using dental appointments under the Thai visa soft power or medical categories?

The post discusses the requirements for using regular dental appointments as valid documentation for a visa under the 'soft power' category in Thailand. Various comments indicate that the embassy in Norway may not approve dental treatments as part of this category and suggest it may fall under the medical visa category instead. It's highlighted that a treatment plan exceeding 6 months, signed by a qualified medical professional, is typically required.