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Dentofacial growth interferences, caused by abnormal lip and tongue function in the mixed dentition period are a common clinical condition. The main purpose of the treatment in such cases is to eliminate oral dysfunction, establish muscular balance and correct or diminish maxillary incisor protrusion. The position of the teeth is determined by the lip and tongue pressure. Lip function may have been the cause of forcing teeth in to malposition they occupy. The case report is presented where the myofunctional trainer T4K is used during growth phase. How to cite this article Tripathi NB, Patil SN. Treatment of Class II Division 1 Malocclusion with Myofunctional Trainer System in Early Mixed Dentition Period: J Contemp Dent Pract 2011;12(6):497-500.

Unlike natural teeth, osseointegrated implants react bio mecha nically in a different fashion to occlusal load due to lack of the periodontal ligament. Hence, the dental implants may be more prone to occlusal overloading, which is often regarded as one of the potential causes for periimplant bone loss and failure of the implant/implant prosthesis. Stability of the intercuspal position and reduction of lateral forces are impor tant aspects when providing occlusal equilibration for implant supported prosthesis. Multiple missing teeth in maxillary and mandibular arches with disturbed occlusal plane due to longterm edentulous condition and overeruption of remaining teeth into the edentulous spaces is the challenging clinical situation. This article describes the management of a patient with multiple missing teeth in both the arches with mandibular implantsupported overdenture and maxillary implant supported fixed prosthesis. The sequence of the treatment planning is highlighted to manage the complex situation to achieve the best predictable occlusion.