Implantologist: dental implants and surgeries

An implantologist is a specialist who plans, installs, and fits dental implants to restore lost teeth and chewing function. This includes assessment of indications, 3D planning, surgical placement of implants, temporary and permanent restorations, and management of complications. [1]

In clinical practice, the implantologist collaborates with a periodontist, a prosthetist, a radiologist, and, if necessary, with related specialists: an otolaryngologist and a maxillofacial surgeon. Modern implantology is an interdisciplinary field in which success depends on the coordination of surgical, prosthetic, and hygienic stages. [2]

The implantologist's responsibilities include not only technical execution but also informed planning: assessing bone volume, mucosal condition, the patient's comorbidities, and risks associated with smoking, diabetes, and drug therapy. Proper patient selection and preparation minimize early and late complications. [3]

A key guideline for modern practice is an evidence base and national or interregional consensus on indications, prevention, and treatment of complications, particularly peri-implant diseases. In recent years, several major guidelines and infographics have emerged, consolidating practical recommendations for clinicians. [4]

When is implantation indicated and what planning options exist?

Implantation is indicated for one or more missing teeth with satisfactory general and local status: sufficient bone volume or appropriate bone grafting/augmentation, normal oral hygiene or a realistic possibility of maintaining it. An assessment of the patient's somatic status is important: decompensated diabetes, radiation therapy to the head and neck, and severe immunosuppression require caution. [5]

Planning includes a clinical examination, photodiagnostics, and 3D tomography to assess bone tissue and anatomical landmarks. Virtual planning allows for modeling the implant position, selecting the length and diameter, and planning navigation or guided surgery if necessary. These digital protocols reduce errors and improve aesthetic outcomes. [6]

Placement options include classic two-stage implantation with delayed loading, immediate implantation with immediate or early loading, and step-by-step protocols with immediate placement of a temporary crown. The choice depends on bone quality, primary implant stabilization, the placement site, and aesthetic requirements. Current research confirms the safety and effectiveness of immediate and early loading with strict patient selection and appropriate protocols. [7]

Risks and limitations are discussed with the patient in advance: the need for bone augmentation, possible additional sinus lift procedures, the risk of soft tissue volume loss, and the duration of treatment. Adequate informed consent and documented planning reduce the likelihood of misunderstandings regarding the outcome. [8]

Preoperative preparation and optimization of somatic status

Before surgery, a full clinical and radiographic examination is performed, key blood parameters are measured if necessary, and the patient's medication history is clarified, including anticoagulants, antidiabetic drugs, and immunosuppressants. The use of certain medications requires coordination with the attending physician; in some cases, timely adjustments to therapy are planned. [9]

Optimization of somatic status includes glycemic control in patients with diabetes, smoking cessation during the preoperative period, and maintaining oral hygiene. The patient is given instructions on home preparation and postoperative care measures to reduce the risk of infection and early implant loss. [10]

The decision to administer antibiotic prophylaxis is made on an individual basis. Some guidelines recommend a single preoperative dose for patients with risk factors, while systematic antibiotic administration to all patients is not recommended due to resistance concerns. A local policy that takes into account the local epidemiology of resistance is needed. [11]

Operating room preparation and sterility of materials are mandatory standards: sterile implants, use of navigation templates, instrument checks, and a complication plan. Large centers maintain a batch log of implants and protocols for tracking results. [12]

Surgical stages: from puncture to primary stabilization

The surgical approach depends on the volume of soft tissue and the need for augmentation. In a two-stage implantation, the mucosa is sutured over the implant; in a single-stage implantation, a healing abutment is immediately installed or a temporary crown is created. The most important goal is to achieve primary implant stability, measured by insertion torque or implant stability. [13]

When bone volume is insufficient, bone augmentation, sinus lift, soft tissue transposition, and conization are used. The choice of augmentation materials and methods is determined by the type of defect and the desired healing time. Bone substitutes and barrier membranes are used according to evidence and clinical indications. [14]

Hemostasis control, gentle technique, and minimizing bone overheating during drilling reduce the risk of necrosis and early implant loss. After implant placement, primary stability is checked; if sufficient stability is not achieved, it is recommended to delay loading and consider additional fixation methods. [15]

Postoperative care includes pain relief, dietary recommendations for the first few days, physical activity restrictions, and a monitoring regimen. If necessary, oral antiseptic treatment and a short course of antibiotic therapy are prescribed for patients with risk factors. [16]

Immediate, early and delayed loading: indications and results

Immediate loading refers to the placement of a temporary crown within 48 hours of implantation; early loading refers to placement after 4-8 weeks; and delayed loading refers to placement after 3-6 months. Each strategy has its own indications and limitations, with the primary criteria being the primary stability of the implant and bone quality. Modern systematic reviews demonstrate good survival rates with immediate and early loading, provided strict selection and a precise protocol are followed. [17]

The advantages of immediate loading include preservation of soft tissue architecture, esthetics, and reduced treatment time. Risks include implant micromobility and possible loss of osseointegration with excessive loading. Occlusion control and minimization of functional loading of the temporary restoration are critical to success. [18]

The decision on the protocol is based on clinical factors: the condition of the alveolar ridge, patient type, implant location, and aesthetic requirements. For the anterior jaw, immediate restoration is often justified if there is sufficient stability and proper surgical technique. [19]

Clinical meta-analyses show comparable survival rates between standard delayed and immediate loading when strict criteria are met. This expands the possibilities for accelerated patient rehabilitation, but planning and monitoring must remain meticulous. [20]

Implant Materials: Titanium and Zirconium - Advantages and Limitations

Titanium remains the "gold standard" due to its high survival rate and long-term clinical data. Titanium implants demonstrate stable osseointegration and a wide variability of platforms and surfaces for adaptation to clinical needs. [21]

Zirconium implants are attractive due to their white aesthetics and the potential for reduced metal ablility in thin gingivae. Recent reviews indicate comparable rates of marginal bone loss and patient satisfaction in the anterior region, but available clinical data regarding durability and mechanical strength are less extensive than those for titanium. [22]

The choice of material is determined by the placement area, load, allergy concerns, and aesthetic requirements. In cases of high chewing loads in the posterior regions, most clinicians prefer titanium, while in the aesthetic zone, the use of zirconium is discussed in strictly selected cases. [23]

It is important to document the material choice and discuss the potential benefits and limitations with the patient, taking into account scientific data and expectations for the longevity of the restoration. The availability of components and the laboratory's experience with specific materials also influence the decision. [24]

Peri-implant diseases: prevention, diagnosis and therapy

Peri-implant gingivitis and periodontitis differ from similar diseases affecting natural teeth in their pathogenesis and clinical presentation. Current guidelines emphasize a multidisciplinary approach to prevention and treatment, including periodontal support, proper implant positioning, and adequate prosthetics. [25]

Prevention begins before implant placement: control of inflammatory lesions, hygiene training, elimination of risk factors, and careful prosthetic planning. After implant placement, regular follow-up visits are essential to assess marginal bone levels, soft tissue condition, and functional occlusion. Poor hygiene and a history of periodontitis increase the risk of peri-implantitis. [26]

Treatment of peri-implantitis begins with non-drug measures: professional hygiene, mechanical and ultrasonic cleaning of implants, and prosthetic adjustments. In cases of progression, localized surgical interventions, regenerative techniques, and antibiotic therapy are used as indicated. The 2023 guidelines offer algorithms for the sequence of interventions and multidisciplinary monitoring. [27]

Early diagnosis and standardized protocols increase the likelihood of implant preservation. Systematic documentation of clinical and radiographic data is important for monitoring progress and selecting optimal treatment strategies. [28]

Complications - early and late, monitoring and action plan

Early complications include implant site infection, lack of primary stability, and pain. Late complications include peri-implantitis, fractures of prosthetic structures, and aesthetic defects. Each complication is assessed and treated according to an assessment and treatment algorithm, including both conservative measures and surgical options. [29]

Monitoring consists of regular visits: clinical assessment of soft tissues, probing depth measurement, bleeding index, and radiographic monitoring of the marginal bone level. The frequency of monitoring is determined by the patient's risk and the stage of treatment – from 3 months in the early period to 6-12 months for stable cases. [30]

The treatment plan for suspected complications includes: urgent assessment, mobility testing, debridement of the lesion, and prosthetic adjustments if necessary. If conservative therapy fails, surgical intervention or implant removal is considered. Decisions are based on the patient's clinical status and expectations. [31]

Documentation and analysis of complications in the clinic serve as a source of practice improvement: analysis of causes, adjustment of protocols and training of staff reduce the frequency of recurring problems. [32]

Long-term patient support and implant care

Long-term maintenance includes regular professional hygiene procedures, home care, and adjustments to dentures as needed. Patient training in the use of interdental brushes and irrigators improves the chances of long-term stability. [33]

An individualized monitoring program is recommended: in most cases, 1-2 annual checkups are sufficient in the absence of risk factors; in patients with a history of periodontitis or signs of inflammation, shorter intervals are recommended. Periodic X-rays help to detect marginal bone changes. [34]

If necessary, restoration adjustments, surface polishing, and replacement of screw connections are performed. Coordination between the clinic and the dental laboratory is essential to ensure timely replacement of components and maintenance of occlusion. [35]

Evaluation of patient satisfaction and functional results is part of the quality of care: maintenance of chewing efficiency, absence of pain and aesthetic conformity are key indicators of success. [36]

Tables

Table 1. Patient selection criteria for implantation

Criterion	Comment
Bone volume	Sufficient or augmentation plan
Condition of the mucous membrane	Healthy, without chronic inflammation
Somatic status	Diabetes control, no decompensation
Smoking	Refusal or reduction before surgery is desirable
Hygiene support	Willingness to make regular visits

Table 2. Load options and benchmarks

Protocol	When is it performed?	Requirements
Immediate loading	0-48 hours	High primary stability
Early loading	4-8 weeks	Monitoring healing and stability
Delayed loading	3-6 months	Traditional safe approach

Table 3. Comparison of implant materials

Characteristic	Titanium	Zirconium
Clinical base	Wide	Increasing, but less data
Aesthetics	Metallic shade	White color, aesthetics for thin gums
Mechanical strength	High	Good, but questions about long-term data
Risk of allergies	Very rarely	A rarely claimed alternative

Table 4. Prevention of peri-implantitis - key points

Stage	Measures
Before installation	Treatment of caries, periodontitis, hygiene training
At the time of installation	Correct positioning, minimal tissue trauma
After installation	Regular monitoring, professional hygiene
Prosthetics	Smooth contacts, easy cleaning access

Table 5. Algorithm for suspected peri-implantitis

Step	Action
1	Clinical assessment and probing
2	X-ray control
3	Professional hygiene and mechanical sanitation
4	In case of progression - surgical debridement and regeneration

Table 6. Example of a monitoring scheme after implant installation

Period	Visit content
1 week	Inspection of the wound, removal of sutures if necessary
1 month	Fabric assessment and care tips
3 months	Assessment of osseointegration, prosthetic plan
6 months	Functional assessment and professional hygiene
12 months	X-ray control of the marginal bone

Brief conclusions - summary

1. The implantologist performs the full cycle of dental restoration, from planning to prosthetics and long-term support; interdisciplinarity increases the chances of success. [37]
2. Prevention of peri-implant diseases and proper prosthetic support are more important than many technical details; international guidelines emphasize a multidisciplinary approach. [38]
3. Immediate and early loading are feasible and effective with strict patient selection and occlusion control; results are comparable to standard delayed loading in selected cases.[39]
4. Titanium remains the benchmark in long-term studies; zirconium is a promising option for aesthetic areas when chosen wisely. [40]
5. Antibiotic prophylaxis should not be prescribed routinely to all patients; the decision is individual, taking into account risk factors and local antibiotic resistance policies. [41]