Profile: HongKong Loyal Beauty Technology Limited specializes in crowns & bridges, veneers, all-ceramic restorations, implant, attachment, orthodontic, full & partial dentures, and metal framework. We are an ISO 9001 certified company. Zirconia crowns are the strongest type of dental crowns. Zirconia crowns are made up of powdered white metal oxide of zirconium, an element with titanium-like properties. Crowns made from zirconia is the strongest available and can withstand strong chewing and biting forces. Zirconia crowns do not easily break or chip off, unlike other crowns made from other materials.