AboutSmiles By Design

Smiles By Design is a Flower Mound based family dentist practice that treats patients of all ages. We are committed to delivering the highest quality dental care and do so using advanced dental equipment. We are a cosmetic dentist that offers services like checkups, teeth cleaning, crowns, veneers and more.

We also perform emergency dentist services that include bonding, root canals, crowns, and bridges. As a local dentist, we create lifelong relationships with our patients and their families and work to ensure that they receive treatments in a comfortable and relaxed environment. Dr. Christy Caffey-Earle & Associates and our staff invite you to schedule an appointment by calling 972-528-5536 and experience why our patients think Smiles By Design is the best dentist in Flower Mound.

Dr. Christy Caffey-Earle

General Dentist

Dr. Christy Caffey-Earle

Enhancing the lives of North Texas patients for over 15 years, Dr. Christy Caffey-Earle believes in providing the highest quality dental care and uses her extensive skills to give each patient a beautiful, healthy smile. Dr. Caffey-Earle is native of Deer Park, Texas. She received degrees from Texas A & M University and the University of Texas Health Science Center, having graduated in 1999.

Since 2003, Dr. Caffey-Earle has been utilizing the most innovative technology, in a conveniently located, upscale facility to provide a warm and caring atmosphere where patients receive dental care that enables them to feel confident with their smiles for a lifetime.

Dr. Caffey-Earle prides herself on treating her patients like family. She utilizes her extensive experience and aesthetic skills to analyze and create a smile ideally suited to each patient. She carefully listens and understands a patient’s needs, desires and concerns. Following diagnosis, she educates her patients on their options, and then develops a specific treatment plan with the ultimate goal of optimum oral health.

Outside the office, Dr. Caffey-Earle and her husband enjoy spending time with their four young children. When not busy practicing dentistry and raising her children, Dr. Caffey-Earle enjoys running and staying active. She uses the same concern, drive and determination she exhibits in her personal life to make sure each patient achieves their dental goals!


  • BS in Biomedical Science, Texas A&M University, cum laude
  • D.D.S., University of Texas Health Science Center, magna cum laude
  • Memberships

  • American Dental Association
  • Texas Dental Association
  • Denton County Dental Society

  • Dr. Sandra Sieber

    General Dentist

    Dr. Sandra Sieber

    After moving to Texas in 1976, Dr. Sieber considers herself a Texan. She moved to the Dallas area in 1984 after graduating from Texas Tech with a Bachelors of Science Degree. She then received her Doctorate of Dental Surgery in 1989 From Baylor College of Dentistry.

    Since graduating, she has practiced dentistry for over 28 years in Irving, TX. She discovered her love of dentistry while undergoing orthodontics as a child. This love helped develop her philosophy of practicing dentistry today. She develops trust with her patients by listening and trying to understand their concerns then providing solutions to help them obtain their optimal dental health. Her favorite aspect of dentistry is making her patients smile, which is why she became a part of the Smiles By Design team.

    When she’s not practicing dentistry, she is watching movies or hanging out with her family. Married to her husband of 26 years she also has 2 boys in college and 2 Jack Russell terriers to care for. She uses the same love of family to give all her patients the same care and attention as she would a member of her family.

    “Dr. Sieber is compassionate and caring. She really cares about her patients.“
    Lindsey A.


  • BS in Biology from Texas Tech
  • D.D.S., Baylor College of Dentistry
  • Memberships

  • 25 year member American Dental Association
  • 25 year member Texas Dental Association
  • 25 year member Dallas County Dental Society
  • Dr. Monica Bazan


    Dr. Monica Bazan

    Dr. Bazan is a board certified Periodontist that has been practicing dentistry since 1998. She is originally from Houston, Texas and graduated with her undergraduate degree from the University of Dallas. She obtained her Doctor of Dental Surgery degree in 1998 and completed her Periodontal residency from the University of Maryland in 2003. Dr. Bazan prides herself by staying up-to-date on procedures and having the latest equipment and instrumentation available to serve her patients. She is conservative in her treatment plans so that she is able to achieve predictable and successful outcomes for her patients. She takes the time to do a thorough clinical examination and discusses the treatment options with her patients. She aspires to have the patient completely understand the options available so that they are able to make the most appropriate decision for their situation.

    Dr. Bazan practices dentistry because she loves it. She treats people as she wants to be treated, and her patients confirm that she is achieving that goal. On a more personal note, she is an avid marathon runner and loves sharing her passion for a healthy lifestyle.


  • Bachelor of Science, University of Dallas
  • Doctor of Dental Surgery, Baylor College of Dentistry
  • General Dentistry Residency, University of Connecticut
  • Periodontal Residency, University of Maryland
  • Memberships

  • American Dental Association
  • Texas Dental Association
  • American Academy of Periodontology
  • Academy of Osseointegration
  • Dr. K. Scott Williams

    General Dentist

    Dr. K. Scott Williams

    Dr. Scott Williams is from Commerce, Texas and did his undergraduate work at Texas A&M University. Dr Williams received his Doctor of Dental Surgery at the University of Texas Dental Branch, Houston. He has practiced dentistry for 26 years, and is married to his high school sweetheart. They have 4 children.

    Dr. Williams visits the Smiles by Design office monthly to perform in-house oral surgery services as a convenient service to our patients. He uses his unique abilities to treatment plan the most conservative treatment that will provide the best long-term solution to his patient’s dental needs. Due to the frightening nature of having oral surgery performed, Dr. Williams looks forward to the opportunity to change a patient’s mind and anxiety about oral surgery. He strives to provide that service in a gentle and caring atmosphere.


  • B.S., Texas A&M University
  • D.D.S., University of Texas, Dental Branch – Houston
  • Memberships

  • Dental School Senior Class Vice-President
  • American Dental Association
  • Texas Dental Association
  • North Texas Dental Society
  • International College or Oral Implantologists
  • Two-Time recipient of the Young Dentist of the Year (North Texas Dental Society)
  • Past President of the 4th District Dental Society
  • Past President of the Allen Chamber of Commerce
  • Founding board member of the Foundation of Allen Public Schools
  • Founding board member and Past President of the Foundation for Lovejoy Schools