KDP categories · Top KDP authors
Preventive: Amazon KDP category data
Amazon Books Best Sellers data for Preventive, updated Nov 3, 2026: median price $27.39, median 16 reviews, average rating 4.6 and a KDPTop opportunity score of 23/100 (highly competitive).
| Price range (middle 50%) | $16.99 – $64.28 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 10% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 29% of the parent category Dentistry (55), one of the easier corners under it.
- At $27.39 its median price beats 87% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 76% of Books categories: the median best seller has only 16 reviews, so new books can chart with few.
Top 10 Preventive best sellers
-
Kiss Your Dentist Goodbye: A Do-It-Yourself Mouth Care System for Healthy, Clean Gums and Teeth
by Ellie Phillips DDS
- List rank#1
- Price$11.18
- Rating4.7
- Reviews398
-
Teeth: The Story of Beauty, Inequality, and the Struggle for Oral Health in America
by Mary Otto
- List rank#2
- Price$3.99
- Rating4.7
- Reviews344
-
Sugarbug Doug: All About Cavities, Plaque, and Teeth
by Dr. Ben Magleby
- List rank#3
- Price$9.97
- Rating4.7
- Reviews394
-
Your Body Never Lies: The Complete Book of Oriental Diagnosis
by Michio Kushi
- List rank#4
- Price$16.93
- Rating4.4
- Reviews233
-
Dental Spanish Workbook: Dental Hygiene Edition
by Amber Lovatos
- List rank#5
- Price$27.39
- Rating4.6
- Reviews38
-
Jaws: The Story of a Hidden Epidemic
by Sandra Kahn
- List rank#6
- Price$14.25
- Rating4.5
- Reviews701
-
Modern Dental Assisting
by Doni L. Bird CDA RDA RDH MA
- List rank#7
- Price$200
- Rating4.8
- Reviews724
-
Mouth Care Comes Clean: Breakthrough Strategies to Stop Cavities and Heal Gum Disease Naturally
by Ellie Phillips DDS
- List rank#8
- Price$10.92
- Rating4.6
- Reviews376
-
Cure Tooth Decay: Heal and Prevent Cavities with Nutrition, 2nd Edition
by Ramiel Nagel
- List rank#9
- Price$29.97
- Rating4.5
- Reviews1,988
-
Infection Control and Management of Hazardous Materials for the Dental Team
by Chris H. Miller BA MS PhD
- List rank#10
- Price$37.99
- Rating4.7
- Reviews67
FAQ
Is Preventive a good niche for Amazon KDP?
Its KDPTop opportunity score is 23/100, which makes it highly competitive. The median best seller has 16 reviews and sells for $27.39.
How many reviews do you need to rank in Preventive?
The median best seller has 16 reviews, and 74% of them have fewer than 100.
What do Preventive best sellers cost?
The median price is $27.39; half of the best sellers are priced between $16.99 and $64.28.
Can new books break into Preventive?
10% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.