William Besly Oral & Maxillofacial Surgery needs a new look logo

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This customer received 24 logo designs from 10 designers. They chose this logo design from desert_fox99 as the winning design.
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I need a simple logo suitable for use as an App logo (so it would need to be square) and also to be replicated in a website yet to be developed.
Oral & Maxillofacial Surgery is the surgical specialty that deals with surgery of the mouth, face and jaws with both dental and medical input. Complex dental surgery and implants, congenital, developmental and traumatic deformity and pathology of the jaws and facial bones are treated. The abbreviation for oral & maxillofacial surgery is "OMS."
Currently I have a letterhead with a practice colour of "straw yellow" as a 15mm band across the upper border that contains dark blue text "William Besly" (Times Roman all in upper case but with a larger W and B) and with Arial for "Oral & Maxillofacial Surgery."
I had in mind using the name "Besly," as this is how I would be searched most often, and the abbreviation "OMS" with a simple graphic indicating a smile (maybe as part of a face). I would like to continue to use the practice colour of "straw yellow" and dark blue text with perhaps another colour for the graphic component.
The design should communicate surgical simplicity and precision. The colour(s) should communicate the positive happiness and satisfaction of yellow. I would like the overall look to be professional and trusted.
Updates
Project Deadline Extended
Reason: Almost there with a design but needs to be suitable for an App logo.
Added Thursday, January 02, 2014
Target Market(s)
All age groups but principally young adults and adults.
Male and Female
The person will probably be referred rather than be seeking the service so there is less need to attracted attention or stand out from other logos and more need to convey a sense of professional and trusted service.
Industry/Entity Type
Medical
Logo Text
Besly OMS
Font styles to use
Colors
Colors selected by the customer to be used in the logo design:
Look and feel
Each slider illustrates characteristics of the customer's brand and the style your logo design should communicate.
Elegant
Bold
Playful
Serious
Traditional
Modern
Personable
Professional
Feminine
Masculine
Colorful
Conservative
Economical
Upmarket
Requirements
Must have
- Suitable for an App logo (square, bold text)