Merchant Navy Dental Requirements: Complete Guide

If you are planning to join the Merchant Navy, you probably already know about the strict physical fitness standards. You might have checked your eyesight or your height, but many students forget one very important part of the body: the mouth. In the Merchant Navy, your dental requirements are just as important as the health of your heart or your lungs.

Your mouth is full of bacteria. Most of them are helpful or do not cause harm, but your mouth is the main entrance to your digestive and respiratory systems. If you have bad dental hygiene, these bacteria can lead to serious diseases. 

Before we talk about the specific problems that can happen, you need to understand how the doctors mark your teeth during the medical exam.

Understanding the Dental Marking System

The human mouth has an upper jaw and a lower jaw. In a healthy adult, there are 32 teeth in total. This means you have 16 teeth in the top jaw and 16 teeth in the bottom jaw. To make counting easier, doctors divide your mouth into four parts called quadrants. Each quadrant has 8 teeth.

When you go for your medicals, the doctor uses a point system. You need to score a certain number of points to be declared fit. To understand this, you first need to know the four types of teeth in your mouth.

1. Incisors

These are the four front teeth in your upper jaw and the four in your lower jaw. Their job is to cut your food. You have 8 incisors in total. In each quadrant, there are 2 incisors.

2. Canines

You have 4 canines in your mouth. These are the sharp teeth next to your incisors. They help you tear food into smaller pieces. They also help you form words when you speak. There is 1 canine in each quadrant.

3. Premolars

These teeth sit behind the canines. They are used to crush and grind food. There are 8 premolars in total, which means 2 in each quadrant.

4. Molars

Molars are the large teeth at the back. They are designed for heavy chewing and grinding. There are 12 molars in a full set of teeth, with 3 in each quadrant. The very last molar is called the wisdom tooth.

Merchant Navy Dental Requirements: How the Points are Calculated

In the Merchant Navy dental medical exam, you are marked based on how well your teeth work together. This is called “functional opposition.” This means that a tooth in your upper jaw must have a matching tooth in the lower jaw to bite against.

If you have a perfect tooth in the top jaw but the tooth below it is missing, the doctor will give you 0 marks for that set. You only get points if both the top and bottom teeth are present and touching correctly.

The Scorecard for Your Teeth

The points are distributed like this:

• Incisors: You get 2 points for 2 pairs of matching incisors in each section.
• Canines: You get 1 point for 1 set of matching canines.
• Premolars: You get 2 points for 2 sets of matching premolars.
• Molars: You get 2 points for each set of the first two molars.
• Wisdom Teeth: If your third molars (wisdom teeth) are well developed and matching, they also give you 2 points.

There is a total of 22 points available in the dental exam. To clear the medicals and be eligible for the Merchant Navy, you must score at least 14 points. If your score is below 14, you will be declared medically unfit.

Recommended Read: Physical and Medical Requirements to Join Merchant Navy

Common Dental Issues and Solutions

Many students worry that a small tooth problem will end their career. The good news is that many dental issues can be fixed before you go for your medical exam. Here is a list of common issues and how they affect your selection.

Teeth Implantation

If you lost a tooth because of an accident, you might have a dental implant. A dental implant is an artificial tooth fixed into your jaw. If you have implants, you can still join the Merchant Navy. The doctors will check to see if the implant is strong and if it has healed perfectly. As long as there are no side effects and the work is done well, you will be considered fit.

Cavities and Tooth Decay

A cavity is a hole in your tooth caused by decay. If you have an open cavity during your medical exam, you will be disqualified. Life on a ship is different from life on land. If you are in the middle of the ocean and your cavity starts to ache, it can be very painful. It will be hard for you to eat or work.

However, if you get your cavities filled by a dentist before the medical exam, you will be fine. Once the cavity is cured and filled properly, it is no longer a reason for disqualification.

Pyorrhea and Bad Breath

Pyorrhea is a serious gum infection that causes bad breath and can damage the bone supporting your teeth. In the Merchant Navy, you live in close spaces with your colleagues. Bad breath can be very uncomfortable for the people working around you. 

More importantly, it shows poor hygiene. If you have severe pyorrhea, you might be rejected. It is best to get a deep cleaning and treatment from a dentist months before your medicals.

Root Canal Treatment

A root canal is a procedure used to save a tooth that is badly decayed or infected. If you have had a root canal and a cap (crown) has been placed on the tooth, you are still eligible for the Merchant Navy. The doctor will check that the infection is gone and the area has healed. If the tooth is functional, it will even count toward your dental points.

Wearing Braces

Many 10th and 12th pass students wear braces to straighten their teeth. If you currently have braces, you do not need to worry. You can join the Merchant Navy even if you are wearing them during the medical exam. The doctors do not disqualify you for trying to fix the alignment of your teeth.

Why Dental Health is Vital for Seafarers

You might wonder why the Merchant Navy is so strict about 14 points and healthy gums. There are several reasons why your dental health matters once you are at sea.

• No Dentists at Sea: Cargo ships do not have a dentist on board. If you develop a massive toothache in the middle of the Atlantic Ocean, you cannot just visit a clinic. You might have to suffer for days until the ship reaches the next port.
• Overall Body Health: Problems in the mouth can lead to infections in other parts of the body. A tooth infection can cause a fever or even heart issues if left untreated for too long.
• Eating and Energy: Working on a ship is physically demanding. You need to eat well to stay strong. If you have missing teeth or painful gums, you cannot chew your food properly, which leads to poor digestion and low energy.
• Confidence: Poor dental care shows up over time. Yellow teeth, missing teeth, and bad breath can make you feel less confident when talking to your officers or crewmates.

How to Prepare for Your Dental Medicals

If you are serious about a career at sea, you should start taking care of your teeth today. Do not wait until the week of your medical exam to visit a dentist.

• Visit a Dentist Now: Go for a general check up. Ask the dentist to count your dental points based on the 14 point rule.
• Get a Cleaning: Ask for a “scaling and polishing” treatment. This removes the hard plaque and stains from your teeth and makes your gums healthier.
• Fix Cavities Early: If the dentist finds any small holes, get them filled immediately.
• Brush Twice a Day: This sounds simple, but it is the best way to prevent pyorrhea and decay. Use a good fluoride toothpaste.
• Check Your Wisdom Teeth: If your wisdom teeth are causing pain or growing sideways, talk to your dentist. Sometimes it is better to remove them or treat them before you go to sea.

How to Prepare for Your Medicals and Exams Together

While maintaining your dental health is a personal responsibility, clearing the entrance exams and securing a sponsorship requires professional guidance. This is where Rife Consultancy helps students across India. Whether you are aiming for IMUCET or looking to join a top shipping company, having the right training partner makes the entire process much smoother.

Expert Training for IMUCET and Sponsorship 2026

Rife Consultancy provides a complete learning ecosystem for maritime aspirants. If you are a 10th or 12th pass student, you can access specialized coaching designed to help you crack the IMUCET and clear company sponsorship interviews on your first attempt.

• Online Classes: If you live outside Surat, you can join live interactive sessions. You also get access to recorded lectures, digital notes, and daily practice sheets so you never miss a lesson.
• Offline Coaching in Surat: For those who prefer a classroom environment, the Surat center offers small batches. This allows for personal monitoring and instant doubt-solving with expert faculties.
• Comprehensive Study Material: You can use exam-focused books and PDFs that cover Physics, Mathematics, English, and Maritime Knowledge. These materials are updated regularly to match the latest exam patterns.
• Real-Exam Mock Tests: Practice with time-bound free mock tests that provide instant results and All-India Rank comparison. This helps you understand exactly where you stand before the actual exam day.

More Than Just Academics

Joining the Merchant Navy is not just about passing a written test. You also need to be ready for the personality and medical rounds. Rife Consultancy offers specific training to ensure you are “sponsorship-ready” by providing:

• Interview Training: Learn how to face panel interviews and master psychometric tests.
• Speaking Skills: Improve your communication and confidence, which are vital for your future life at sea.
• 1:1 Counseling: Get expert advice on which course to choose, whether it is DNS, B.Sc. Nautical Science, B.Tech Marine Engineering, or GP Rating.
• Merchant Navy Officers as Mentors: Learn directly from people who have already worked on ships and know exactly what the industry demands.

By preparing with Rife Consultancy, you ensure that while your body is medically fit, your mind is academically ready to secure a seat in the best maritime institutes. Whether it is solving previous year papers or clearing a tricky math doubt, you get all the support you need under one roof.

Conclusion

Your dream of sailing across the world depends on your physical fitness, and your teeth are a big part of that. The dental requirements are not meant to stop you, but to ensure that you stay healthy and pain free while you are away from home for many months.

Remember that every small detail matters in your medical assessment. Take care of your body and your teeth now. If you maintain good hygiene and fix any existing issues early, you will easily score the minimum 14 points. This will clear your path to a successful and exciting career in the Merchant Navy. Good luck with your preparations.

Frequently Asked Questions