Jocelyn Connolly Seth Gregor Chris Gigliotti Soyeon Jeon October 7 th, 2011

Timeline I. Introduction 1. Initial problem statement 2. Mission statement II. Customer needs assessment 1. Customer needs list 2. Weighting of customer needs III. Revised problem statement IV. External Search 1. Literature review 2. Patent search 3. Benchmarking 4. Product dissection 5. Design target V. Concept Generation 1. Concept generation VI. Concept selection VII. Final Design

Project Management  Redesign better toothbrush  Project timeline  18 days  Team member duties  Revisions  Closing

Customer Needs Revised problem statement: Reduce noise vibrations with rubber casing Change from rotary to rotary/oscillating/vi brating One-button power switch Bristle variety 1. Portable (.07) 1.1 Lightweight 1.2 Small 1.3 Battery included 1.4 Thin 1.5 Retractable 2. Durable (.19) 2.1 Will not easily break 2.2 Waterproof 3. User friendly (.14) 3.1 Safe 3.2 Easy to turn on/off 3.3 Ergonomic 3.4 Low noise 3.5 Replaceable head 3.6 Comfortable grip 3.7 Safety switch 3.8 Appealing 4. Cleaning effectiveness (.47) 4.1 Variety of bristles (.17) 4.2 Tongue scrub (.06) 4.3 Oscillating(0.26) 4.4 Mouthwash dispenser (0.02) 4.5 Fast (0.18) 4.6 Long battery life (0.31) 5. Low Cost (.13)

External Search  Customers value cleaning effectiveness most  Researched strengths and weaknesses of electric toothbrushes  Oscillating/pulsating toothbrush cleans better than high frequency toothbrush (Sonicare Plus Vs. Braun Oral-B 3D Plaque Remover)

Concept 1- Power Switch One button switch Embedded in a flat-round bottom Prevents accidental turn-on User-friendly

Concept 2- Energy Mechanism Shaft and 2 gears Allows 2 different motions (oscillating, rotating) Low cost

Concept 3- Brush Head 2 small circular brushes Lightweight (portability) Efficient and effective cleaning

Concept 4- Cleaning Extra Tongue scrub Low cost Better cleaning User-friendly

Concept 5- Power Generation Long-lasting battery life Lightweight Low cost

Concept 6- Bristles Durable Cleans more effectively User-friendly

Pugh Charts  Durability (.19)  Portability (.07)  Low cost (.13)  Cleaning effectiveness (.47)  User-friendly (.14)

Final Design- Brush Head

Final Design- Base

Final Product

Functions  AA-battery for power  One button to turn on/off  Shaft and two gears  Bristles  Tongue Scrub  Grip

Conclusion  Improvements on original product  Successful design  Low cost, durability, portability, cleaning effectiveness, user- friendly