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Best Periodontists in St. Louis, MO (2026)

7 clinics ranked by DR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Top DR Score among periodontists: Infinite Smiles, 5.0★ from 541 Google reviews, open evenings until 7:30 PM.

  2. 2

    Best for weekend appointments: Aspen Dental, 4.3★ from 999 Google reviews, open evenings until 7 PM and Saturdays until 3 PM.

Rankings can't be bought. Booking through us earns you a $60 gift card and doesn’t affect order. How we rank

7 of St. Louis’s 317 clinics have a periodontist on staff, as of October 2026. 2 of them open Saturdays and 2 stay open after 6pm. They offer 15 of our 17 tracked services on average.

Top 7 periodontists in St. Louis at a glance

Top 7 periodontists in St. Louis at a glance
RankClinicDR ScoreRating (reviews)Evenings / weekendsBest for
1Infinite Smiles745.0★ (541)EveningsTop DR Score among periodontists
2Aspen Dental714.3★ (999)Evenings · SatBest for weekend appointments
3Soulard Family Dentistry694.9★ (425)——
4ClearChoice Dental Implant Center684.8★ (642)——
5Dr. Suzanne Gregoire644.7★ (23)Sat—
6Saint Louis University - Center for Advanced Dental Education614.0★ (94)——
7Aspen Dental - St Louis (South City) MO564.3★ (609)——

The 7 periodontists in St. Louis, ranked

Ordered by DR Score, a 0–100 score from 6 published factors. Scores refresh weekly.

  1. Ranked #1 in St. Louis

    #1 Infinite Smiles

    5430 Lemay Ferry Rd #3, St. Louis, MO 63129

    74/100

    Ranked #1 because of its Google rating and review volume: 5.0★ from 541 Google reviews, 541 Google reviews.

    • 5.0from 541 Google reviews
    Hours
    Mon–Wed 8 AM–5 PM · Thu 10 AM–7:30 PM · Fri–Sun closed

    General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more

    Book appointment at Infinite SmilesFull profile(314) 866-3972
    In their words

    Our dental treatments include: general dentistry, preventive dentistry, oral hygiene care, laser dentistry, gum disease treatment, periodontal disease treatment, restorative dentistry, implant dentistry, dental implants, teeth whitening, KOR Deep Bleaching, cosmetic dentistry, dental crowns, dental veneers, migraine headache treatment, sedation dentistry, relaxation dentistry, emergency dental care, mercury free dental care, orthodontics, Invisalign, ClearCorrect,…

    From Infinite Smiles's own description. Not part of the ranking.

  2. #2 Aspen Dental

    4016 Lemay Ferry Rd, St. Louis, MO 63129, United States

    71/100

    Ranked #2 because of its Google rating and review volume: 4.3★ from 999 Google reviews, the most Google reviews in St. Louis (999).

    • 4.3from 999 Google reviews
    Hours
    Mon–Wed 7:30 AM–5 PM · Thu 9 AM–7 PM · Fri 8 AM–12:30 PM · Sat 8 AM–3 PM · Sun closed

    General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more

    Book appointment at Aspen DentalFull profile(314) 627-0209
    In their words

    Aspen Dental in St Louis,MO offers a wide range of dental services like denture, gum diseases, root canal, crowns and bridges offered by skilled doctors and best lab technicians .To see a dentist near you book online or call during Monday – Friday 6:30am –11:00pm, Saturday 7:00am – 9:00pm, or Sunday 7:00am – 5:30pm EST. As part of our Smile Wide Smile Safe Promise, we are taking proactive steps so that patients, care teams, and communities have a safe, clean care environment…

    From Aspen Dental's own description. Not part of the ranking.

  4. #4 ClearChoice Dental Implant Center

    555 N New Ballas Rd Suite 300, St. Louis, MO 63141

    68/100

    Ranked #4 because of its Google rating and review volume: 4.8★ from 642 Google reviews, 642 Google reviews.

    • 4.8from 642 Google reviews
    Hours
    Mon–Thu 7:30 AM–4:30 PM · Fri–Sun closed

    General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more

    Book appointment at ClearChoice Dental Implant CenterFull profile(314) 266-5774
    In their words

    ClearChoice dental implants St. Louis is open. Our dental implants center is operating with heightened health and safety measures to help prevent the spread of COVID-19 and other viruses. Please visit our website for details about what ClearChoice is doing to provide a clean, safe environment when you visit. Take advantage of our free consultation for pricing customized for you. Visit ClearChoice for the best dental implants St. Louis.

    From ClearChoice Dental Implant Center's own description. Not part of the ranking.

  5. #5 Dr. Suzanne Gregoire

    950 Francis Pl #201, St. Louis, MO 63105, United States

    64/100

    Ranked #5 because of its Google rating and services: 4.7★ from 23 Google reviews, 17 of 17 services offered.

    • 4.7from 23 Google reviews
    Hours
    Mon 8 AM–2 PM · Tue–Thu 8 AM–5 PM · Fri closed · Sat 8 AM–2 PM · Sun closed

    General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more

    Book appointment at Dr. Suzanne GregoireFull profile(314) 558-4181
    In their words

    At our practice, we are dedicated to providing the finest dental care to the members of the St. Louis community and its surrounding areas. From the moment you walk into our office, you will be greeted by our friendly staff who will do their utmost to ensure that your visit with us is as comfortable as possible. We specialize in all areas of oral health care including preventative, restorative and cosmetic dentistry. Professional dental care, beautiful esthetic results,…

    From Dr. Suzanne Gregoire's own description. Not part of the ranking.

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How we ranked St. Louis dentists

This list covers the 7 St. Louis clinics that have a periodontist on staff. We scored 7 St. Louis clinics on 6 factors: reputation 45%, review volume 15%, recency 10%, access 15%, services 10%, profile completeness 5%. 170 were excluded (12 closed and 158 duplicate listings). Data from Google listings and clinic websites, refreshed October 21, 2026.

Paid placement never changes a rank or score. Featured clinics are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

DR Score factors and weights
FactorWeightComputed fromIn St. Louis data
Reputation45%Bayesian-adjusted Google star ratingMeasured
Review volume15%log10(review count) against the city maximumMeasured
Recency10%Share of reviews in the last 12 monthsMeasured
Access15%Evenings, Saturday, Sunday, same-day/emergency, accepting new patientsMeasured
Services10%Services offered out of 17Measured
Profile completeness5%Named dentists, years open, languages, insurance, photosMeasured

Best Periodontists in St. Louis, MO: frequently asked questions

Who are the periodontists in St. Louis?

7 St. Louis clinics have a periodontist on staff in our data. By DR Score, the highest-ranked are Infinite Smiles, Aspen Dental and Soulard Family Dentistry. These counts come from clinic hours and profile data as of October 2026, re-checked every week.

Which of these St. Louis clinics are open on Saturday?

2 of the 7 clinics on this page open on Saturdays. The highest-ranked are Aspen Dental and Dr. Suzanne Gregoire, and Aspen Dental opens 8 AM–3 PM. These counts come from clinic hours and profile data as of October 2026, re-checked every week.

Which St. Louis clinics on this page are open late?

2 of the 7 clinics on this page stay open after 6pm on at least one weekday. Infinite Smiles has the latest weekday hours, until 7:30 PM on Thursdays. These counts come from clinic hours and profile data as of October 2026, re-checked every week.

How are periodontists in St. Louis ranked?

Each clinic has one DR Score from 0 to 100, built from 6 published factors: reputation, review volume, recency, access, services and profile completeness. This page lists the 7 St. Louis clinics that have a periodontist on staff, in DR Score order. No clinic pays for its position.

Update log for St. Louis

  1. : DR Scores recalculated for 317 clinics.
  2. : 158 duplicate listings merged.
  3. : 12 closed clinics removed.

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