Pre-Dental Timeline: What to Do Each Year of College - Smiles Movement

Dental school applications ask for a lot. Coursework, test scores, shadowing, volunteering, letters, and essays all come together in one package. Trying to do everything in your last year rarely works. A clear pre dental timeline helps you spread the work across college so each piece gets the time it deserves.

This guide walks you through a common path, year by year. It assumes you plan to apply in the summer after your junior year and start dental school right after graduation. Many students follow a different schedule, and that is completely fine. You will also learn how to adjust your plan if you start late or decide to take a gap year.

Pre-dental timeline basics: how the application cycle works

Most US dental schools use ADEA AADSAS, the centralized application. You apply about one year before you want to start. For example, the University of Iowa College of Dentistry lists the 2027–28 AADSAS cycle as opening on May 11, 2027, with submissions starting June 1, 2027. Those dates are subject to change, so always confirm them with ADEA.

Many schools review applications on a rolling basis. Applying early in the cycle, with every part ready, gives you more room to schedule interviews. If you want a full overview of the process, read our guide to entering dental school.

Your pre-dental timeline, year by year

First year: build your foundation

• Start your core science courses, usually biology and general chemistry.
• Meet your pre-health advisor and ask about your school's process, including committee letters.
• Join a pre-dental club to meet peers and hear from dental students.
• Start one volunteer activity you can stay with over time.
• Begin a simple log of your hours and experiences.

Use this year to explore the profession too. Our guide to dental specialties shows how many paths exist within dentistry.

Second year: gain experience

• Continue prerequisites, often organic chemistry and physics.
• Start shadowing general dentists and, if possible, a specialist.
• Take on a leadership role in a club or service project.
• Get to know professors who could write letters later.
• Use summer break for a longer experience, such as a job, research, or a structured service program.

Summer and winter breaks are a good time to try something new. Our article on short-term volunteer trips explains how a week of service can fit into a busy academic schedule.

Third year: prepare to apply

• Finish key prerequisites, including biochemistry if your schools require it.
• Plan your Dental Admission Test (DAT) date. Many students test in the spring or early summer of this year, after finishing the science courses the test covers.
• Ask for letters of recommendation in early spring.
• Draft your personal statement and update your experience log.
• Build your school list and check each school's requirements.

Fourth year: interviews and next steps

• Confirm that the AADSAS application you submitted in early summer is complete and verified.
• Complete secondary applications promptly.
• Prepare for interviews, including the MMI format some schools use.
• Keep your grades steady and stay involved in your activities.

If you take a gap year

A gap year can give you time to strengthen your application. Some students work, research, or serve during this year. Others retake the DAT or finish courses. If you choose this path, apply in the summer after graduation and keep building experiences you can describe with depth.

How to keep your pre-dental timeline flexible

No two students follow the exact same path. Transfer students, working students, and career changers often move at a different pace. Adjust the order of steps to match your life.

Focus on three things you can control. Keep your coursework on track. Gain steady experience in dental settings and with communities. Reflect on what you learn. A dental service learning trip can fit into a winter or summer break. On Smiles Movement trips, students support local dental teams in partner communities and take part in oral health education.

Plan your next step

A good timeline turns a big goal into small, steady actions. If you want to add meaningful experience during your breaks, Smiles Movement can help. Fill out the form on this page to get more information about upcoming programs and trip dates.

Frequently asked questions about the pre-dental timeline

When should I take the DAT?

Many students take it after finishing their main science prerequisites, often in the spring or early summer before they apply. Choose a date that leaves time for a retake if needed.

When should I start shadowing?

Starting in your first or second year gives you time to observe different settings. It also helps you confirm that dentistry fits your goals.

Is it too late if I start in my junior year?

No. You can still build a strong application. You may decide to apply a year later or take a gap year to gain more experience.