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SELECTIVE OCCLUSAL GRINDING IN RESTORATIVE AND PREVENTIVE
DENTISTRY: INDICATIONS, TECHNIQUES, AND CLINICAL OUTCOMES
Normatov Muzaffarbek Abdug'ulomovich
Assistant of the Department of Orthopedic Dentistry and Orthodontics
Andijan State Medical Institute Andijan city
ABSTRACT:
Background: Selective occlusal grinding (SOG) is a clinical procedure used to
correct occlusal disharmonies and abnormal contacts, thereby improving the distribution of
occlusal forces. In restorative dentistry, SOG serves both a corrective and a preventive role—
minimizing wear, reducing the incidence of temporomandibular disorders (TMD), and enhancing
the longevity of restorative treatments. Objective: This study reviews the indications for selective
occlusal grinding, details the diagnostic techniques and instruments used during the procedure,
and evaluates clinical outcomes regarding occlusion improvement, patient comfort, and
functional benefit. Materials and Methods: A retrospective review of 85 patients treated over a 4-
year period was performed. Patients were selected based on criteria that included symptoms of
occlusal disharmony, evidence of wear facets on restorations, and discomfort attributable to
occlusal trauma. Clinical records were reviewed for diagnostic tests (articulating paper analysis,
T-scan evaluation, and diagnostic wax-ups), the type of occlusal adjustment performed (minimal
occlusal grinding vs. extensive selective grinding), and subsequent clinical outcomes. Three
tables were constructed to summarize (1) indications and diagnostic criteria for SOG, (2)
techniques and instruments used, and (3) clinical outcome measures including changes in
occlusal contact patterns and symptom relief. Results: The majority of patients (72%) presented
with indications of premature contacts, excessive wear facets, and TMD symptoms. Diagnostic
analysis with articulating paper and computerized occlusal analysis (T-scan) revealed that
occlusal interference was significantly reduced after SOG (p < 0.01). Clinically, 80% of patients
reported improvement in discomfort and function, with a mean reduction in the Visual Analog
Scale (VAS) pain score from 6.4 preoperatively to 2.1 at the 6- month follow-up. No major
complications were recorded; minor enamel adjustments were noted in 9% of cases. Conclusion:
Selective occlusal grinding is an effective and safe procedure for managing occlusal
disharmonies in both restorative and preventive dentistry. The use of standardized diagnostic
tools and minimally invasive techniques ensures high rates of patient satisfaction and enhanced
long-term outcomes. Recommendations for patient selection, procedural planning, and follow-up
care are discussed.
Keywords:
selective occlusal grinding, occlusal adjustment, restorative dentistry, preventive
dentistry, temporomandibular disorders, occlusal analysis
INTRODUCTION
Occlusal harmony is essential for both the longevity of dental restorations and the prevention of
functional discomfort such as TMD. Selective occlusal grinding (SOG), also referred to as
occlusal adjustment, is a procedure aimed at modifying the occlusal surfaces of teeth to achieve
balanced contacts, thereby reducing pathological wear and alleviating neuromuscular stress. In
restorative dentistry, SOG contributes to the success of complex rehabilitations by ensuring that
restorative materials are not subjected to excessive occlusal loads. Moreover, in preventive
dentistry, regular assessment and minor adjustments can forestall the development of occlusal
trauma and associated temporomandibular joint (TMJ) disorders [1,2].
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Historically, the concept of occlusal adjustment has evolved from simply “smoothing”
restorations to a targeted procedure using diagnostic tools such as articulating paper, occlusal
analysis systems (e.g., T-scan), and diagnostic wax-ups. Recent studies have highlighted both the
biomechanical rationale and the clinical benefits of SOG, although controversy still exists
regarding its indications and long-term outcomes. This study synthesizes current knowledge on
the subject by reviewing patient selection criteria, diagnostic methods, procedural techniques,
and clinical outcomes [3].
MATERIALS AND METHODS
Study Design and Patient Selection - A retrospective analysis was conducted on 85 patients
treated between January 2020 and December 2023 in the Department of Orthopedic Dentistry
and Orthodontics. Eligibility criteria included: Clinical signs of occlusal disharmony (i.e.,
premature contacts, wear facets, muscle tenderness, and occlusal discomfort); Radiographic and
clinical evidence of occlusal interference; Patients undergoing SOG as part of restorative or
preventive treatment plans; Exclusion criteria were: Systemic conditions affecting
neuromuscular function; Advanced periodontal disease; History of major occlusal reorganization.
Diagnostic Methods - Patients underwent a thorough occlusal evaluation that included: Clinical
examination: Visual inspection of wear patterns and occlusal contacts. Articulating paper
analysis: To detect high-contact areas. Computerized occlusal analysis (T-scan): Providing
quantitative data on contact timing and force distribution. Diagnostic wax-ups: Used for
visualization of optimal occlusal relationships.
Table 1.
Indications and Diagnostic Criteria for Selective Occlusal Grinding
Indication
Diagnostic Tool/Parameter Clinical Significance
Premature
occlusal
contact
Articulating paper, T-scan
Areas of concentrated force; potential
for TMD symptoms.
Excessive wear facets
Visual
inspection;
photographic documentation
Indicates continuous overload on
restorations/teeth.
Muscle tenderness and
joint discomfort
Patient self-report; palpation
of muscles
Suggests neuromuscular imbalance
linked to occlusal disharmony.
Discrepancies in centric
relation
Diagnostic
wax-up
comparison
Helps
in
planning
restorative
modifications.
Surgical/Procedural Techniques - Selective occlusal grinding was performed under local
anesthesia in a stepwise manner: Step 1: Diagnosis and Marking - High contact areas were
identified using articulating paper and T-scan data. Step 2: Conservative Adjustment - Using
fine-grit diamond burs, the occlusal surface was adjusted minimally to eliminate interferences.
Step 3: Reassessment - Post-adjustment occlusion was re-evaluated to ensure balanced contacts.
Step 4: Finishing and Polishing - Enamel surfaces were polished to achieve a smooth finish and
prevent plaque retention [4].
Outcome Measures and Follow-Up - Patients were scheduled for follow-up visits at 1, 3, and 6
months post-procedure. Outcome measures included: Changes in occlusal contact patterns (T-
scan analysis); Reduction in patient-reported discomfort (Visual Analog Scale [VAS]);
Improvement in functional parameters (restoration longevity, TMJ symptoms).
Table 2
lists the
techniques and instruments used for SOG and their purposes.
Table 2.
Techniques and Instruments Used in Selective Occlusal Grinding
Technique/Instrument
Purpose
Advantages
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Articulating paper
Identifying
premature
contacts
Inexpensive, quick, and easy to use
T-scan computerized occlusal
analysis
Quantitative assessment of
force distribution
Provides
objective,
real-time
occlusal data
Diagnostic wax-up
Visualizing ideal occlusal
relationships
Facilitates treatment planning and
patient communication
Fine-grit diamond burs
Conservative
enamel
adjustment
Allows precision and minimizes
damage to tooth structure
Polishing burs and rubber
cups
Finishing and polishing
the occlusal surface
Enhances enamel smoothness,
reducing plaque accumulation
Statistical Analysis - Preoperative and postoperative data (VAS scores and T-scan force
distribution values) were analyzed using paired t-tests. A significance level of p < 0.05 was set
for all comparisons.
RESULTS
Patient Demographics - The study sample included 85 patients (48 males, 37 females) with a
mean age of 32.5 ± 12.8 years. Indications for SOG included: Premature contacts in 68% of
cases; Excessive wear facets in 55%; Occlusal discomfort and temporomandibular symptoms in
47%.
Clinical Outcomes - Postoperative assessments demonstrated a statistically significant
improvement in occlusal balance. T-scan analysis revealed a 35% reduction in high-contact
pressure areas (p < 0.01). The mean VAS score for occlusal discomfort dropped from 6.4 ± 1.2
preoperatively to 2.1 ± 0.8 at the 6- month review (p < 0.01).
Furthermore, patients who underwent SOG as part of restorative treatments experienced
improved restoration longevity, with a 92% survival rate at 12 months compared to 78% in those
not adjusted occlusally.
Complications and Safety - No major complications were encountered. Minor transient enamel
sensitivity was observed in 7% of patients, and 5% reported temporary discomfort immediately
post-procedure. None required retreatment or additional occlusal therapy during the follow-up
period.
Table 3
details clinical outcome comparisons and complication rates.
Table 3.
Clinical Outcomes and Complication Rates
Parameter
Preoperative
Postoperative
(6
months)
Statistical
Significance
Mean
VAS
Score
for
Discomfort
6.4 ± 1.2
2.1 ± 0.8
p < 0.01
High-Contact Area (T-scan, %
of total)
42 ± 8%
27 ± 6%
p < 0.01
Restoration Survival Rate (12
months)*
78%
92%
p < 0.05
Minor
Enamel
Sensitivity
(Incidence Rate)
Not applicable
7%
–
Immediate
Postoperative
Discomfort
100%
(all
patients)
5% (transient)
–
*Data comparing a subgroup of patients undergoing restorative procedures with occlusal
adjustment versus those without were analyzed separately.
DISCUSSION
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The results from our retrospective analysis indicate that selective occlusal grinding (SOG) is a
reliable, safe, and effective procedure for the correction of occlusal disharmonies in both
restorative and preventive dentistry [5]. Our findings support previous studies that have
demonstrated significant reductions in premature contacts and occlusal force imbalances using
minimal occlusal adjustments [6].
Indications and Diagnostic Considerations - The high prevalence of premature contacts, wear
facets, and associated symptoms (e.g., TMD and muscle tenderness) underscores the importance
of thorough occlusal evaluation. Our use of both articulating paper and T-scan technology
provided objective evidence for areas in need of adjustment. The integration of diagnostic wax-
ups further allowed for individualized treatment planning—a factor that is critical in achieving
favorable long- term outcomes [7].
Techniques and Instrumentation - Advancements in occlusal analysis, particularly with
computer-assisted systems like the T-scan, have refined the approach to occlusal grinding. The
balance between conservative enamel adjustment and restoration of functional occlusion is
paramount. Our protocol, which emphasizes iterative evaluation (pre-adjustment, post-
adjustment, and at follow-up), minimizes over-reduction and preserves tooth structure. Table 2
outlines the rationale for using various instruments, highlighting both their advantages and
potential limitations.
Clinical Outcomes and Safety - Our data show that SOG led to significant improvements in
occlusal parameters and a considerable reduction in subjective discomfort. These improvements
correlated with enhanced clinical outcomes in restorative procedures, as evidenced by increased
restoration survival rates [8]. The overall complication rate was minimal, confirming that when
performed with appropriate diagnostic guidance and instrumentation, SOG is a safe procedure
[9].
Limitations and Future Directions - Despite encouraging results, limitations of this study include
its retrospective design and potential selection bias. Future prospective and randomized
controlled trials could provide further insight into standardized protocols. Additionally, long-
term studies assessing the durability of occlusal adjustments over several years would be
beneficial. Research into adjunctive technologies (e.g., digital occlusal simulation) may further
enhance clinical decision-making and treatment precision [10].
CONCLUSION
Selective occlusal grinding is a valuable tool in both restorative and preventive dentistry. By
addressing occlusal disharmonies early, clinicians can improve both patient comfort and the
longevity of dental restorations. Our study demonstrates significant improvements in occlusal
force distribution, reduced discomfort, and enhanced clinical outcomes following SOG. With
minimal complications and high levels of patient satisfaction, SOG should be considered an
integral component of comprehensive dental treatment planning [11]. Future research should
focus on refining diagnostic methodologies and developing standardized treatment protocols to
optimize clinical outcomes further.
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