Dental hygiene: types of procedures

Professional dental hygiene is the controlled, in-office removal of soft plaque and tartar, as well as a final polishing to smooth out micro-roughness. This procedure reduces the bacterial load, prevents gingivitis, and maintains the results of periodontitis treatment, as part of a maintenance therapy program. European guidelines define this as professional mechanical plaque removal, performed regularly and as indicated. [1]

Modern protocols include combinations of ultrasonic scaling, hand instruments, air-powder treatment with low-abrasive glycine or erythritol powders, rubber cups with polishing pastes, and additional prophylactic agents as indicated. The choice of techniques depends on the level of risk, the presence of inflammation, restorations, and orthodontic appliances. [2]

The benefits of in-office care are enhanced by home care: brushing with fluoride toothpaste, daily interdental hygiene, and mindful eating. Even with twice-yearly dental visits, the total time spent on home hygiene is tens of times greater than that of professional procedures, so daily habits directly impact the outcome. [3]

Finally, personalization of the frequency is important: a routine interval of 6 or 12 months does not provide clinical benefits for surrogate outcomes in some patients, and evidence for a uniform interval for all adults is considered limited. The optimal schedule is determined based on individual risk. [4]

Indications and purposes

Primary indications include preventing gingivitis in the presence of plaque and mineralized deposits, maintaining remission after periodontitis treatment, and monitoring plaque retention factors around restorations, dentures, and braces. Eliminating these factors and regular professional plaque removal are recommended as part of the first stage of therapy. [5]

For patients with prior periodontitis, the goals are broader: maintaining clinical stability, limiting the progression of attachment loss, and reducing the risk of tooth loss. Maintenance therapy combines professional plaque removal with home care monitoring and correction of modifiable risk factors. [6]

For implants, the goal of preventive care is to reduce bacterial biofilm in supra- and subgingival areas without damaging the implant and abutment surfaces, thereby reducing the risk of peri-implant mucositis. For this purpose, gentle techniques and instrument materials are preferred. [7]

In children and adolescents, preventive visits and the frequency of professional procedures are also determined by the risk of caries and inflammatory periodontal diseases. A risk-based approach allows for timely intensification of prevention and resource conservation when the risk is low. [8]

Types of professional cleaning: what is included in the protocol

Ultrasonic scaling removes supragingival and subgingival calculus using tip vibration and irrigation. It is a fast and predictable method for removing massive deposits, especially in the early stages. Proper selection of power and angle minimizes discomfort and excessive hard tissue removal. [9]

Manual treatment with curettes and scalers complements ultrasound for anatomical issues and localized calculus residues. The combination of manual and ultrasonic techniques remains the standard, especially for patients with previous periodontitis, where gentle treatment of critical areas is essential. [10]

Air-powder treatment with low-abrasive glycine and erythritol powders is designed for gentle removal of biofilm on enamel, cementum, roots, and around implants. Studies show comparable effectiveness to traditional methods, with increased comfort and lower abrasiveness. Special tips are used for subgingival areas. [11]

Final polishing with rubber cups and pastes smooths out micro-roughness, reducing plaque retention. As part of comprehensive preventative care, this improves the feeling of cleanliness and can promote greater adherence to home hygiene after a visit. [12]

Table 1. Comparison of professional cleaning methods

Method	What removes better?	Comfort	Risk of hard tissue abrasion	Special Notes
Ultrasound	Mineralized deposits	Average	Low under correct conditions	Rapid debridement of massive stone
Hand tools	Residual stone, difficult areas	Average	Low with proper technique	Precise refinement of anatomical areas
Air polishing with glycine and erythritol	Biofilm on enamel, root, implant	High	Very low	Gentle subgingival cleaning, special tips

Reasons: Clinical reviews and recommendations for professional plaque removal. [13]

Efficiency and evidence base

Systematic reviews of routine scaling and polishing at fixed intervals have shown limited evidence of benefit for surrogate outcomes in adults without periodontitis, highlighting the importance of individualizing frequency and combining it with good home hygiene. The effect is greater when professional procedures are accompanied by care instructions. [14]

In post-treatment support for periodontitis, regular professional plaque removal is included in protocols with a high level of consensus, reducing the risk of tooth loss and maintaining periodontal stability. It is a key element of maintenance therapy in international guidelines. [15]

Air-powder treatment with glycine and erythritol demonstrates comparable clinical efficacy to ultrasonic decontamination with less discomfort, which may improve adherence to regular visits. However, superiority over traditional approaches for hard outcomes has not been confirmed in all studies. [16]

For peri-implant conditions, the data are heterogeneous: in the case of mucositis, gentle techniques help control the biofilm, but in the case of peri-implantitis, conservative treatment alone, including erythritol systems, often produces a limited clinical effect, requiring a broader approach. [17]

Features of implants, braces and restorations

Avoid scratching the titanium around implants with steel instruments. Plastic, titanium, or PEEK inserts and low-abrasive glycine and erythritol powders, which remove biofilm and cause less surface damage, are preferred. This reduces the risk of an adverse tissue reaction. [18]

Air-powder cleaning is especially convenient for orthodontic appliances with multiple retention zones. The low abrasiveness of modern powders allows for effective cleaning around brackets and archwires, improving gum inflammation control while making the procedure highly tolerable. [19]

In areas of composite and ceramic restorations, gentle polishing regimes are important to avoid increasing surface roughness. Polishing after removing deposits restores smoothness and reduces plaque retention on restorations, extending their lifespan. [20]

In the presence of deep periodontal pockets and lost attachment, professional plaque removal is combined with subgingival treatment and regular maintenance therapy. The decision on the need for more frequent visits is made after assessing the risk and response to treatment. [21]

Frequency and plan of observation

There is no single “right-fits-all” interval. Evidence suggests a weak evidence base for a fixed interval in all patients after periodontal therapy, so a risk-based schedule is recommended, taking into account hygiene, bleeding, pocket depth, smoking, and comorbid conditions. [22]

The classic guideline for a first-time patient without significant risk factors is a follow-up examination and preventive cleaning after 6 months, with subsequent adjustments based on the results. This approach allows for a safe start and then tailors the frequency to individual needs. [23]

For high-risk patients and those with a history of periodontitis, intervals are shortened by combining visits with plaque index assessments, bleeding, and localized subgingival treatment in the desired areas. The clinician makes the decision on the interval based on a combination of factors. [24]

In pediatric practice, the frequency of preventive services is also tied to the risk of caries and gingivitis, which can change with age, diet, and hygiene motivation. Regular risk reassessment is essential. [25]

Table 2. Principles for choosing periodicity

Patient profile	Basic guideline	Strengthening control	Comments
Low-risk adult	6-12 months	When hygiene deteriorates	Adjusted based on the inspection results
Post-periodontitis	3-6 months	If there are signs of inflammation	Maintenance therapy with subgingival treatment
Orthodontics, implants	3-6 months	When hygiene is difficult	Gentle techniques and training
Children, teenagers	By risk of caries	When habits change	Regular reassessment of risk

Reasons: Guidelines and reviews on frequency and maintenance therapy. [26]

Patient safety, restrictions and expectations

Modern techniques, when used correctly, are safe for enamel, cement, and restorations. Low-abrasive powders such as glycine and erythritol exhibit very low abrasiveness while effectively removing biofilm, which is important for sensitive roots and implants. [27]

Short-term sensitivity after a major cleaning is possible, especially with recession and exposed dentin. Symptoms are usually transient and improve with proper home hygiene and treatment recommendations, including using desensitizers and proper home hygiene. [28]

In peri-implantitis, conservative cleaning alone is often insufficient for lasting results, requiring a more comprehensive approach based on guidelines. This should be explained to the patient in advance, setting realistic expectations. [29]

More comfortable techniques such as erythritol air polishing may improve tolerability and adherence to regular visits, which indirectly improves the long-term effectiveness of prophylaxis and maintenance therapy. [30]

What happens at the appointment and how to prepare

The examination includes an assessment of plaque and inflammation indices, identification of retention factors, monitoring of home hygiene, and development of a treatment plan. This allows for the selection of appropriate instruments and targeted treatment areas. [31]

Next, supra- and subgingival deposits are removed using the selected combination of methods, with a focus on gentle techniques in sensitive areas and around implants. If necessary, localized subgingival treatment is performed. [32]

The procedure concludes with polishing and home care recommendations, a demonstration of interdental devices, and an adapted monitoring schedule based on risk. Instructions on brushing technique and nutrition are critical to maintaining the results. [33]

Patient preparation includes routine hygiene on the day of the appointment, informing the dentist about sensitivity, restorations and implants, and medications and health conditions that affect bleeding and healing.[34]

Table 3. Brief patient checklist

Stage	What to do	For what
Before the visit	Report on restorations, implants, medications	Selecting gentle tools and tactics
On a visit	Follow instructions, report discomfort	Customizable modes
After	Follow hygiene and visit recommendations	Maintaining the effect and preventing relapse

Reasons: clinical guidelines and reviews. [35]