1. Quality and quantity: decent and dignified, conform with regulations of the local government code, state the nature of the dental practice, may include the name of the dentist and clinic hours
2. Must not appear: "X-ray", "Gas", "Air-abrasive", "dental laboratory", "air- conditioned", misleading claims of the dentist
3. Must comply with the use of only one size of lettering regularly used by the tenants in said building when placing upon the directory board of an office building