A space maintainer is an appliance used to protect the space when a child loses a primary tooth prematurely, ensuring favorable conditions for the eruption of permanent teeth later on. With the presence of the space maintainer, adjacent teeth are prevented from encroaching into the protected area. As a result, the permanent teeth in the intervened area have the opportunity to erupt in the correct position, without being compressed or misaligned by surrounding teeth. Let's explore a real case of using a space maintainer at Herident Dental Clinic.
1. Overview of the Space Maintainer Treatment at Herident Dental Clinic
The patient, N.P.C, an 8-year-old girl from Lao Cai, was brought to Herident Dental Clinic for a check-up after her family noticed unusual signs in the lower jaw area. Previously, the patient had undergone X-ray imaging at a local dental clinic and was diagnosed with a jaw cyst. However, due to the surgical conditions in the province not meeting the safety requirements for intervention, the family was referred to Herident Dental Clinic in Hanoi by an acquaintance.
At Herident, the patient was thoroughly examined by MD.Dr. Bùi Thị Hải. In addition to the jaw cyst, the doctor also identified the risk of premature loss of a primary tooth, which could lead to misalignment of the occlusion and affect aesthetics in the future. To prevent orthodontic complications later on, the doctor recommended the use of a space maintainer – a smart, gentle, and effective solution for cases like this.
2. Patient's Expectations
When bringing their child to Herident, the patient's family expressed their desire to find a safe, painless, and long-lasting treatment solution that would help avoid surgery or complex orthodontic interventions in the future. Having heard about the high-quality, specialized care at Herident, the parents hoped that the doctor would offer a treatment plan that would address the issue effectively.
- Quick and with minimal travel required (as they are from Lao Cai).
- Minimize the impact on the child's psychological well-being.
- Prevent potential dental complications, particularly issues with malocclusion and aesthetics in the future.
3. Initial Condition
Age: 8 years old
Gender: Female
A jawbone cyst has been detected in the area of a primary molar, and extraction of the affected tooth is planned
Associated risk: Early loss of the primary tooth may lead to adjacent teeth shifting into the space, causing crowding and misalignment of the permanent tooth eruption.
Expected consequences if left untreated: Malocclusion, dental misalignment, and an increased risk of requiring orthodontic treatment in the future.
4. Diagnosis & Treatment Indication
Case assigned to: Dr. Bùi Thị Hải
Primary diagnosis:
- Radicular cysts at teeth 74 and 75 (extraction of the primary teeth has been indicated).
- Risk of permanent tooth misalignment due to early loss of primary teeth.
Treatment indication:
Based on the actual condition of the patient and the expectations expressed by the family, Dr. Hải has proposed the use of a space maintainer: A fixed space maintainer will be placed after the extraction of the primary teeth to preserve the space, ensuring that the permanent teeth can erupt in the correct position.
Reason for choosing this method:
- Early orthodontic prevention to avoid malocclusion.
- A gentle, quick solution with minimal intervention.
- Only one appointment is required thanks to the modern space maintainer technology at Herident.
5. Treatment process at Herident Dental Clinic
5.1. Examination & X-ray: Dr. Hải evaluates the condition of the jawbone and the adjacent teeth.


Evaluation:
- Crowded lower incisors, with tooth 32 displaced outside the arch
- eeth 74 and 75 have undergone root canal treatment and have large fractures in the crown.
- Large periapical radiolucency in the root area of teeth 74 and 75.
5.2. Primary teeth extraction: Performed gently, without pain.

"Extraction of teeth 74 and 75 with minimal invasion, opening of the jawbone cyst. Duration of procedure: 20 minutes.
5.3. Placement of space maintainer in the first appointment. No need for traditional impression taking thanks to the application of new technology – saving time and ensuring high accuracy.

- Step 1: Try the space maintainer to ensure it fits the size of the permanent tooth that will carry the space maintainer.
- Step 2: Install the space maintainer using bonding material. Duration of procedure: 10 minutes.
6. Achieved Results
The space is fully protected, with no signs of invasion from adjacent teeth.

It prevents the risk of bite misalignment and minimizes the need for orthodontic treatment in the future.
The patient cooperated well and did not experience any discomfort during the use of the appliance.
The family is satisfied with the quick and efficient process, as well as the attentiveness of the medical team.
7. Professional analysis: What is a space maintainer and why is it necessary?
When a primary tooth is lost early – due to disease or trauma – if no space maintainer is used, the adjacent teeth will encroach into the gap, causing permanent teeth to shift. A space maintainer is a device designed to prevent this situation, ensuring that the permanent teeth grow in the correct position.
The main function of a space maintainer:
This type of appliance offers many positive effects in cases of early tooth loss for various reasons. Specifically, here are the main benefits of space maintainers:
* It prevents adjacent teeth from shifting into the gap left by the lost tooth, thereby ensuring that the permanent tooth in the corresponding area has the opportunity to emerge in the correct position.
• It stimulates the proper development of the dental arch, significantly reducing the risk of early bone resorption.
• Quickly restores chewing function, reducing discomfort and inconvenience caused by early tooth loss.
• Promotes the development of permanent teeth, helping them erupt in the correct position and at the right time, without being displaced by neighboring teeth.
• Improves speech function.
Points to note for space maintainer care:
- Do not use your hands or tongue to apply force on the space maintainer.
- Take good and thorough care of your child's teeth by brushing and using dental floss.
- Regularly visit the dental clinic according to the dentist's scheduled appointments.
8. Conclusions
Proactively intervening with a space maintainer during the transitional phase of baby teeth helps children avoid many complex dental complications in the future. This is a prime example of the important role of preventive dentistry in pediatric oral health care.
If your child shows signs of early tooth loss, lost teeth due to trauma, or is going through an uneven tooth replacement phase, don't hesitate to reach out to the team of doctors at Herident Dental Clinic. We are always ready to provide consultation, examination, and support your child on the journey to developing a healthy and beautiful smile.
Advantages of the Space Maintainer Technology at Herident:
Quick procedure in one appointment, no need for multiple visits.
No need for traditional plaster impressions anymore.
The space maintainer is precisely designed, safe, painless, ensuring aesthetics and comfort for the child.
Dr. Bùi Thị Hải – The one who cultivates bright smiles at Herident for over 12 years

With over 12 years of dedication to her profession, Master – Doctor Bùi Thị Hải is not only a leading expert in the treatment of dental diseases but also a trusted companion to thousands of patients, especially children. With her skillful hands and warm heart, Dr. Hải always creates a sense of safety and comfort for her patients from the very first encounter.
The doctor not only treats with expertise but also touches the hearts of her patients through patience and empathy. The moments when she sees the reassuring gaze of children or the bright smiles of the elderly as they regain the ability to chew – these are the greatest motivators for her to continue dedicating herself to her work.

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