The efficacy and effectiveness of electric toothbrushes in comparison to manual toothbrushes lead to superior full-mouth and interproximal plaque removal and reduction of gingivitis, periodontitis and dental caries. Additionally, the use of an irrigator has been shown to improve the overall oral health. The aim of this study was to design and develop a utility model for the combined effect of the oral irrigator and tooth brush for maintaining oral health. The design of the modified toothbrushing unit comprises of an electric toothbrush and an oral irrigator. This was achieved by removing the electric toothbrush head to place a drill in the centre of the brush head for the insertion of irrigator head. The irrigator which was attached to a 50 ml water container with a detachable irrigator head powered by a 12 V external battery source was used to pump the water. The outcome was that a multifunctional working model combining the electric tooth brush and oral irrigator is designed successfully. Aqua Brush can be incorporated into the regular oral hygiene regimen making it convenient for the patient as it can be used as a single brushing unit and/or with the added irrigation enhancing the maintenance of oral hygiene.

The dental implants are used for replacement of missing teeth, and it’s have been widely used for restore the function, esthetic, speech, and patient confidence. It forms the contact between the implant and the bone. The implant threads are altered to improve the initial contact, primary stability, increase the surface area, and facilitate dissipation of loads at the implant and bone surface. Implant thread design is one of the key factors it determines the primary stability and stress distribution during osseointegration, the threaded implants are reduced both stress on bone and sliding distance between the implant and bone. The primary stability is play a important role in less bone quality, double and triple threaded implant increases the primary stability than single threaded implant, the implant threads distribute mechanical stress equally at bone implant interface, lead to stability of dental implants and less bone resorption and also higher thread profile improve the primary stability, the success or failure of implants depend on the thread designs and quality of bone.