The importance of vitamin D in dental health and recovery following dental implant surgery

One of the factors contributing to the proper integration of a dental implant into the bone and to the long-term success of this type of treatment is the healing of the soft tissues, namely the gums. Vitamin D acts as an aid in this process of healing and tissue regeneration, as it promotes faster adaptation of the gums around the implant.  

All these benefits simply translate into a reduced period of discomfort and long-term stability of the implants.

In this article, we will examine the link between vitamin D and oral health, its role in the osseointegration process, and the main myths surrounding vitamin D.  

Vitamin D is a fat-soluble nutrient that is essential for maintaining systemic mineral balance and regulating immune functions. It is vital for the health of the entire body, including the health of teeth and gums.  

The necessary amount of vitamin D is obtained through exposure to sunlight (vitamin D3), but also from certain foods (vitamin D2). When the skin is exposed to UVB rays from the sun, the process of vitamin D synthesis takes place.

The role of vitamin D is to help the body properly absorb calcium and phosphorus – minerals essential for strong teeth and bones.

When the body lacks sufficient vitamin D, teeth can become more vulnerable. Enamel and dentine do not mineralise sufficiently, which increases the risk of tooth decay and damage to the tooth structure. Over time, this can lead to visible problems, as well as increased tooth sensitivity.

“Vitamin D deficiency also affects the bone formation process, which could influence the development of gum recession. This recession exposes dental tissues and makes them vulnerable to bacterial action, in which case tooth decay may occur. Furthermore, exposure of the root leads to tooth sensitivity. Vitamin D deficiency can also lead to inflammatory reactions in the gums, with effects such as bleeding gums and problems with the tissues supporting the teeth,” explains Dr Horațiu Dobre, Specialist in Oral and Maxillofacial Surgery at DENT ESTET clinics. 

Directly involved in how the body uses calcium and phosphorus, vitamin D plays a vital role in maintaining strong bones, helping to prevent conditions such as osteoporosis and osteomalacia.

Without adequate levels of this vitamin, minerals cannot be absorbed effectively, and the bone gradually loses its density and strength.

“For a dental implant to be stable and integrate correctly, the bone must be healthy and well-mineralised. Vitamin D helps to achieve certain parameters related to the primary stability of the implant, as well as the remodelling of the bone around the implant. In this way, the bone in the implant area is prepared to withstand the functional stresses of chewing when the final dental crown is fitted,” explains Dr Horațiu Dobre.

When vitamin D is lacking, the body ‘borrows’ calcium from the bones to maintain overall balance, which can lead to a weakening of the bone structure and may negatively affect the success of dental implant treatment. 

Following the placement of a dental implant, the surrounding bone undergoes a natural process of adaptation and healing. In the first few weeks after the procedure, the bone undergoes intensive remodelling: some of the bone tissue is resorbed, whilst other parts are rebuilt, which can temporarily lead to a slight decrease in bone density around the implant.

“In this context, vitamin D plays an essential role. An optimal level of vitamin D helps the cells responsible for bone remodelling (osteoblasts and osteoclasts) to function properly and rebuild the bone around the implant. After this initial period, the bone begins to gradually strengthen, becoming denser and more stable, until the implant is fully integrated. Therefore, an adequate level of vitamin D before and after the procedure can contribute significantly to the long-term success of the dental implant,” says Dr Horațiu Dobre. 

In the oral cavity, vitamin D deficiency manifests itself through:

• tooth decay
• bad breath
• frequent gum inflammation  
• generalised gum recession leading to tooth sensitivity.

To prevent certain problems, it is important to have blood tests carried out before the actual surgical procedure. In this way, if a vitamin D deficiency is detected, complications and any undesirable outcomes are minimised.

According to the recommendations of the International Society of Endocrinology, vitamin D levels should be between 40 and 60 ng/mL. Any level below 20 ng/mL is considered a deficiency.  

Natural sources  

Foods rich in vitamin D include oily fish, eggs and fortified dairy products, which are primarily sources of vitamin D2.  

Controlled exposure to the sun is also a natural source of vitamin D. To ensure adequate vitamin D synthesis in the skin, a 20-minute bike ride each day, for example, is sufficient.  

Vitamin D supplements

Both types of vitamin D, D3 and D2, are useful for normal synthesis, but different mechanisms and metabolic pathways are involved.

Vitamin D3 supplementation should be undertaken on the advice of your doctor and should include a loading phase during which the desired levels of vitamin D are built up. 

Vitamin D has anti-inflammatory properties, which promote proper healing of the gum tissue surrounding the dental implant. An optimal level of vitamin D contributes to better gum healing and helps the body defend itself more effectively against bacteria. This reduces the risk of complications such as peri-implantitis.

When the gums are inflamed and weakened, they become more vulnerable to bacterial attack, and infections can spread more easily to the surrounding tissues. By maintaining an adequate level of vitamin D, tissues heal more healthily, and post-operative recovery is safer and more predictable. 

“Blood tests should ideally be carried out no later than 45 days before surgery. If vitamin D levels are found to be below the minimum threshold, vitamin D3 supplementation is required for a period of time to achieve an appropriate level,” says Dr. Horațiu Dobre.

Levels below 20 ng/mL require retesting for this parameter at intervals of 3–6 months, depending on the treating doctor’s instructions.

Interdisciplinary collaboration between the dentist and the endocrinologist or general practitioner is essential for the proper management of patients with vitamin D deficiency. 
 

There are many misconceptions and myths surrounding vitamin D.  

“Vitamin D cures dental problems” or “simply being out in the sun is enough to absorb vitamin D” are just two of them. Even if such statements contain a grain of truth, it must be borne in mind that the information is incomplete.

“It is true that vitamin D helps prevent dental problems such as tooth decay or gum inflammation, but only when other biological parameters are within the appropriate physiological ranges. The body functions as a single, integrated system, and a deficiency in one area makes that particular category of metabolic processes more vulnerable. Simply being out in the sun isn’t enough, because, for example, in winter we wear very thick clothes and only our face is exposed. Duration of exposure, the use of sunscreen, clothing and the season are just some of the factors that influence vitamin D synthesis,” explains Dr Horațiu Dobre.  

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