Peri-implantitis
Peri-implantitis is the most advanced form of peri-implant disease, involving inflammatory lesions of the mucosa that surrounds implants, associated with supporting bone loss.

Peri-implantitis

Peri-implant mucositis has a low potential for inflammatory response, and thus, when oral biofilm accumulation exists, the inflammation spreads deeper, possibly causing implant loss. Peri-implantitis has an

Peri-implant mucositis diagram
Peri-implant mucositis is a disease that involves inflammatory lesions of the mucosa that surrounds implants, without supporting bone loss.

Peri-implant mucositis

Because peri-implant tissues have a lower capacity to react to the accumulation of oral biofilm compared to periodontal tissues, peri-implant disease is highly prevalent among implant patients.

Periodontitis diagram
Periodontitis is a form of gum disease with infectious aetiology that involves destruction of the periodontium due to excess accumulation of oral biofilm.

Periodontitis

Periodontitis is the most advanced form of gum disease and can potentially have an impact on a systemic level, with a prevalence of 35.4% in adults between

Association between biofilm and infection
Diseases that have proven to be directly associated with biofilm-related infections include caries, gingivitis and periodontitis.

Association between biofilm and infection

The data reflects the importance of biofilms as a source for local infections that can trigger complications on a systemic level.

Many non-pathogenic organisms exist that produce

Oral factors that influence bacterial growth smile
Salivary pH, oral cavity temperature and endogenous nutritional input are some of the key determinants for bacterial growth.

Oral factors that influence bacterial growth

Factors that regulate the composition, development, amount, coexistence and distribution of oral microorganisms on surfaces of the oral cavity (primary ecosystems) are known as environmental determinants. There

Bacterial diversity and interactions
Some 700 bacterial species can colonise the oral cavity, of which 400 can be found in subgingival biofilms

Bacterial diversity and interactions

Bacterial diversity of the oral cavity

The primary colonisers are mainly gram-positive bacteria – cocci and bacilli – which bind to salivary protein antigens, by specificity of

Properties of oral biofilms
Biofilm formation is a survival strategy for bacteria, because it gives them certain advantages over planktonic bacteria: communication (quorum sensing), resistance and the ability to adapt

Properties of oral biofilms

In oligotrophic environments (lack of nutrients), most bacteria (and some fungi) leave their state of individual planktonic cells to grow as biofilms, forming colonies embedded in a

Oral biofilm formation
Biofilm formation is a survival strategy for bacteria, as it gives them the capability for adaptation, communication and resistance.

Oral biofilm formation

Oral biofilm has pathogenic potential and its presence is associated with the development of caries, gingivitis, periodontal disease, peri-implant mucositis and peri-implantitis.

The process of oral biofilm