The present invention provides a dental articulator (10), including a lower base (12) having two support arms (28) extending. Each support arm (28) includes an upper end with an opening (30). Each opening (30) is adapted to receive a fixed angle temporomandibular joint assembly (32) with a fixed horizontal condyle angle, or an adjustable angle temporomandibular joint assembly (34) with an adjustable horizontal condyle angle. A dental articulator kit may initially include only a pair of fixed-angle temporomandibular joint components (32), and a user may obtain a pair of adjustable-angle temporomandibular joint components (34) after a period of time.本發明提供一種牙齒咬合架(10),包括具有延伸的兩個支撐臂(28)的下底座(12)。每個支撐臂(28)包括具有帶有開口(30)的上端部。每個開口(30)適於接收具有固定水平髁角的固定角度顳下頜關節組件(32),或者具有可調水平髁角的可調整角度顳下頜關節組件(34)。一種牙齒咬合架套件最初可以僅包括一對固定角度顳下頜關節組件(32),而使用者可於一段時間後獲取一對可調整角度顳下頜關節組件(34)。